October 27th in stamps Amsterdam. Michael Servetus, Niccolò Paganini, Theodore Roosevelt, Ulugh Beg

Here are some events that happened on October 27th. It could be an event or a person that died or was born on that day

1275 – Traditional founding of the city of Amsterdam.

Amsterdam is the capital and most populous city of the Netherlands with a population of 872,680 within the city proper, 1,380,872 in the urban area and 2,410,960 in the metropolitan area. Found within the province of North Holland, Amsterdam is colloquially referred to as the "Venice of the North", attributed by the large number of canals which form a UNESCO World Heritage Site.

After the floods of 1170 and 1173, locals near the river Amstel built a bridge over the river and a dam across it, giving its name to the village: "Aemstelredamme". The earliest recorded use of that name is in a document dated 27 October 1275, which exempted inhabitants of the village from paying bridge tolls to Count Floris V. This allowed the inhabitants of the village of Aemstelredamme to travel freely through the County of Holland, paying no tolls at bridges, locks and dams. The certificate describes the inhabitants as homines manentes apud Amestelledamme (people residing near Amestelledamme). By 1327, the name had developed into Aemsterdam.

Amsterdam's main attractions include its historic canals, the Rijksmuseum, the Van Gogh Museum, the Stedelijk Museum, Hermitage Amsterdam, the Concertgebouw, the Anne Frank House, the Scheepvaartmuseum, the Amsterdam Museum, the Heineken Experience, the Royal Palace of Amsterdam, Natura Artis Magistra, Hortus Botanicus Amsterdam, NEMO, the red-light district and many cannabis coffee shops. It drew more than 5 million international visitors in 2014. The city is also well known for its nightlife and festival activity; with several of its nightclubs (Melkweg, Paradiso) among the world's most famous. Primarily known for its artistic heritage, elaborate canal system and narrow houses with gabled façades; well-preserved legacies of the city's 17th-century Golden Age. These characteristics are arguably responsible for attracting millions of Amsterdam's visitors annually. Cycling is key to the city's character, and there are numerous bike paths.

The Amsterdam Stock Exchange is considered the oldest "modern" securities market stock exchange in the world. As the commercial capital of the Netherlands and one of the top financial centres in Europe, Amsterdam is considered an alpha world city by the Globalization and World Cities (GaWC) study group. The city is also the cultural capital of the Netherlands. Many large Dutch institutions have their headquarters in the city, including: the Philips conglomerate, AkzoNobel, Booking.com, TomTom, and ING. Moreover, many of the world's largest companies are based in Amsterdam or have established their European headquarters in the city, such as leading technology companies Uber, Netflix and Tesla. In 2012, Amsterdam was ranked the second best city to live in by the Economist Intelligence Unit (EIU) and 12th globally on quality of living for environment and infrastructure by Mercer. The city was ranked 4th place globally as top tech hub in the Savills Tech Cities 2019 report (2nd in Europe), and 3rd in innovation by Australian innovation agency 2thinknow in their Innovation Cities Index 2009. The Port of Amsterdam is the fifth largest in Europe. The KLM hub and Amsterdam's main airport: Schiphol, is the Netherlands' busiest airport as well as the third busiest in Europe and 11th busiest airport in the world. The Dutch capital is considered one of the most multicultural cities in the world, with at least 177 nationalities represented.

A few of Amsterdam's notable residents throughout history include: painters Rembrandt and Van Gogh, the diarist Anne Frank, and philosopher Baruch Spinoza.

Dutch stamps commemorating Amsterdam

1449 Died: Ulugh Beg, Persian astronomer and mathematician (b. 1394)

Mīrzā Muhammad Tāraghay bin Shāhrukh, better known as Ulugh Beg (22 March 1394 – 27 October 1449), was a Timurid sultan, as well as an astronomer and mathematician.

Ulugh Beg was notable for his work in astronomy-related mathematics, such as trigonometry and spherical geometry, as well as his general interests in the arts and intellectual activities. It is thought that he spoke five languages: Arabic, Persian, Turkic, Mongolian, and a small amount of Chinese. During his rule (first as a governor, then outright) the Timurid Empire achieved the cultural peak of the Timurid Renaissance through his attention and patronage. Samarkand was captured and given to Ulugh Beg by his father Shah Rukh.

He built the great Ulugh Beg Observatory in Samarkand between 1424 and 1429. It was considered by scholars to have been one of the finest observatories in the Islamic world at the time and the largest in Central Asia. Ulugh Beg was subsequently recognized as the most important observational astronomer from the 15th century by many scholars. He also built the Ulugh Beg Madrasah (1417–1420) in Samarkand and Bukhara, transforming the cities into cultural centers of learning in Central Asia.

However, Ulugh Beg's scientific expertise was not matched by his skills in governance. During his short reign, he failed to establish his power and authority. As a result, other rulers, including his family, took advantage of his lack of control, and he was subsequently overthrown and assassinated.

Stamps from Turkey and Uzbekistan depicting Ulugh Beg

1553 – Condemned as a heretic, Michael Servetus is burned at the stake just outside Geneva.

Michael Servetus (Spanish: Miguel Serveto as real name, French: Michel Servet), also known as Miguel Servet, Miguel de Villanueva, Michel Servet, Revés, or Michel de Villeneuve (Tudela, Navarre, 29 September 1509 or 1511 – 27 October 1553), was a Spanish theologian, physician, cartographer, and Renaissance humanist. He was the first European to correctly describe the function of pulmonary circulation, as discussed in Christianismi Restitutio (1553). He was a polymath versed in many sciences: mathematics, astronomy and meteorology, geography, human anatomy, medicine and pharmacology, as well as jurisprudence, translation, poetry and the scholarly study of the Bible in its original languages.

He is renowned in the history of several of these fields, particularly medicine. He participated in the Protestant Reformation, and later rejected the Trinity doctrine and mainstream Catholic Christology. After being condemned by Catholic authorities in France, he fled to Calvinist Geneva where he was burnt at the stake for heresy by order of the city's governing council.

Spanish stamps depicting Servetus

1782 Born: Niccolò Paganini, Italian violinist and composer (d. 1840)

Niccolò (or Nicolò) Paganini (27 October 1782 – 27 May 1840) was an Italian violinist, violist, guitarist, and composer. He was the most celebrated violin virtuoso of his time, and left his mark as one of the pillars of modern violin technique. His 24 Caprices for Solo Violin Op. 1 are among the best known of his compositions, and have served as an inspiration for many prominent composers.

Niccolò Paganini was born in Genoa, then capital of the Republic of Genoa, the third of the six children of Antonio and Teresa (née Bocciardo) Paganini. Paganini's father was an unsuccessful trader, but he managed to supplement his income by playing music on the mandolin. At the age of five, Paganini started learning the mandolin from his father and moved to the violin by the age of seven. His musical talents were quickly recognized, earning him numerous scholarships for violin lessons. The young Paganini studied under various local violinists, including Giovanni Servetto and Giacomo Costa, but his progress quickly outpaced their abilities. Paganini and his father then traveled to Parma to seek further guidance from Alessandro Rolla. But upon listening to Paganini's playing, Rolla immediately referred him to his own teacher, Ferdinando Paer and, later, Paer's own teacher, Gasparo Ghiretti. Though Paganini did not stay long with Paer or Ghiretti, the two had considerable influence on his composition style.

The French invaded northern Italy in March 1796, and Genoa was not spared. The Paganinis sought refuge in their country property in Romairone, near Bolzaneto. It was in this period that Paganini is thought to have developed his relationship with the guitar. He mastered the guitar, but preferred to play it in exclusively intimate, rather than public concerts. He later described the guitar as his "constant companion" on his concert tours. By 1800, Paganini and his father traveled to Livorno, where Paganini played in concerts and his father resumed his maritime work. In 1801, the 18-year-old Paganini was appointed first violin of the Republic of Lucca, but a substantial portion of his income came from freelancing. His fame as a violinist was matched only by his reputation as a gambler and womanizer.

In 1805, Lucca was annexed by Napoleonic France, and the region was ceded to Napoleon's sister, Elisa Baciocchi. Paganini became a violinist for the Baciocchi court, while giving private lessons to Elisa's husband, Felice. In 1807, Baciocchi became the Grand Duchess of Tuscany and her court was transferred to Florence. Paganini was part of the entourage, but, towards the end of 1809, he left Baciocchi to resume his freelance career.

For the next few years, Paganini returned to touring in the areas surrounding Parma and Genoa. Though he was very popular with the local audience, he was still not very well known in the rest of Europe. His first break came from an 1813 concert at La Scala in Milan. The concert was a great success. As a result, Paganini began to attract the attention of other prominent, though more conservative, musicians across Europe. His early encounters with Charles Philippe Lafont and Louis Spohr created intense rivalry. His concert activities, however, were still limited to Italy for the next few years.

In 1827, Pope Leo XII honoured Paganini with the Order of the Golden Spur. His fame spread across Europe with a concert tour that started in Vienna in August 1828, stopping in every major European city in Germany, Poland, and Bohemia until February 1831 in Strasbourg. This was followed by tours in Paris and Britain. His technical ability and his willingness to display it received much critical acclaim. In addition to his own compositions, theme and variations being the most popular, Paganini also performed modified versions of works (primarily concertos) written by his early contemporaries, such as Rodolphe Kreutzer and Giovanni Battista Viotti.

Paganini's travels also brought him into contact with eminent guitar virtuosi of the day, including Ferdinando Carulli in Paris and Mauro Giuliani in Vienna. But this experience did not inspire him to play public concerts with guitar, and even performances of his own guitar trios and quartets were private to the point of being behind closed doors.

Throughout his life, Paganini was no stranger to chronic illnesses. Although no definite medical proof exists, he was reputed to have been affected by Marfan syndrome or Ehlers–Danlos syndrome. In addition, his frequent concert schedule, as well as his extravagant lifestyle, took their toll on his health. He was diagnosed with syphilis as early as 1822, and his remedy, which included mercury and opium, came with serious physical and psychological side effects. In 1834, while still in Paris, he was treated for tuberculosis. Though his recovery was reasonably quick, after the illness his career was marred by frequent cancellations due to various health problems, from the common cold to depression, which lasted from days to months.

In September 1834, Paganini put an end to his concert career and returned to Genoa. Contrary to popular beliefs involving his wishing to keep his music and techniques secret, Paganini devoted his time to the publication of his compositions and violin methods. He accepted students, of whom two enjoyed moderate success: violinist Camillo Sivori and cellist Gaetano Ciandelli. Neither, however, considered Paganini helpful or inspirational. In 1835, Paganini returned to Parma, this time under the employ of Archduchess Marie Louise of Austria, Napoleon's second wife. He was in charge of reorganizing her court orchestra. However, he eventually conflicted with the players and court, so his visions never saw completion. In Paris, he befriended the 11-year-old Polish virtuoso Apollinaire de Kontski, giving him some lessons and a signed testimonial. It was widely put about, falsely, that Paganini was so impressed with de Kontski's skills that he bequeathed him his violins and manuscripts.

In 1836, Paganini returned to Paris to set up a casino. Its immediate failure left him in financial ruin, and he auctioned off his personal effects, including his musical instruments, to recoup his losses. At Christmas of 1838, he left Paris for Marseilles and, after a brief stay, travelled to Nice where his condition worsened. In May 1840, the Bishop of Nice sent Paganini a local parish priest to perform the last rites. Paganini assumed the sacrament was premature, and refused.

A week later, on 27 May 1840, Paganini died from internal hemorrhaging before a priest could be summoned. Because of this, and his widely rumored association with the devil, the Church denied his body a Catholic burial in Genoa. It took four years and an appeal to the Pope before the Church let his body be transported to Genoa, but it was still not buried. His body was finally buried in 1876, in a cemetery in Parma. In 1893, the Czech violinist František Ondříček persuaded Paganini's grandson, Attila, to allow a viewing of the violinist's body. After this episode, Paganini's body was finally reinterred in a new cemetery in Parma in 1896.

Stamps from Italy and Monaco depicting Paganini

1858 Born: Theodore Roosevelt, American colonel and politician, 26th President of the United States, Nobel Prize laureate (d. 1919)

Theodore Roosevelt Jr. (October 27, 1858 – January 6, 1919) was an American statesman, politician, conservationist, naturalist, and writer who served as the 26th president of the United States from 1901 to 1909. He served as the 25th vice president from March to September 1901 and as the 33rd governor of New York from 1899 to 1900. As a leader of the Republican Party, he became a driving force for the Progressive Era in the United States in the early 20th century. His face is depicted on Mount Rushmore alongside George Washington, Thomas Jefferson, and Abraham Lincoln. He is generally ranked in polls of historians and political scientists as one of the five best presidents. 

Roosevelt was a sickly child with debilitating asthma, but he overcame his health problems by embracing a strenuous lifestyle, as well as growing out of his asthma naturally in his young adult years. He integrated his exuberant personality, vast range of interests, and world-famous achievements into a "cowboy" persona defined by robust masculinity. He was home-schooled, and he began a lifelong naturalist avocation before attending Harvard College. His book The Naval War of 1812 (1882) established his reputation as a learned historian and as a popular writer. Upon entering politics, he became the leader of the reform faction of Republicans in New York's state legislature. His wife and his mother both died in rapid succession, and he escaped to a cattle ranch in the Dakotas. He served as Assistant Secretary of the Navy under President William McKinley, but he resigned from that post to lead the Rough Riders during the Spanish–American War, returning a war hero. He was elected Governor of New York in 1898. Vice President Garret Hobart died, and the New York state party leadership convinced McKinley to accept Roosevelt as his running mate in the 1900 election. Roosevelt campaigned vigorously, and the McKinley-Roosevelt ticket won a landslide victory based on a platform of peace, prosperity, and conservation.

Roosevelt took office as vice president in March 1901 and assumed the presidency at age 42 after McKinley was assassinated the following September. He remains the youngest person to become President of the United States. Roosevelt was a leader of the Progressive movement, and he championed his "Square Deal" domestic policies, promising the average citizen fairness, breaking of trusts, regulation of railroads, and pure food and drugs. He made conservation a top priority and established many new national parks, forests, and monuments intended to preserve the nation's natural resources. In foreign policy, he focused on Central America where he began construction of the Panama Canal. He expanded the Navy and sent the Great White Fleet on a world tour to project the United States' naval power around the globe. His successful efforts to broker the end of the Russo-Japanese War won him the 1906 Nobel Peace Prize. He avoided controversial tariff and money issues. Roosevelt was elected to a full term in 1904 and continued to promote progressive policies, many of which were passed in Congress. He groomed his close friend William Howard Taft, and Taft won the 1908 presidential election to succeed him.

Roosevelt grew frustrated with Taft's conservatism and belatedly tried to win the 1912 Republican nomination. He failed, walked out, and founded the so-called "Bull Moose" Party which called for wide-ranging progressive reforms. He ran in the 1912 election and the split allowed the Democratic nominee Woodrow Wilson to win the election. Following the defeat, Roosevelt led a two-year expedition to the Amazon basin where he nearly died of tropical disease. During World War I, he criticized President Wilson for keeping the country out of the war with Germany, and his offer to lead volunteers to France was rejected. He considered running for president again in 1920, but his health continued to deteriorate and he died in 1919.

US stamps depicting Teddy Roosevelt

October 25th in stamps Heinrich Friedrich Karl vom und zum Stein, Marcellin Berthelot, Pablo Picasso, Michael I of Romani

Here are some events that happened on October 25th. It could be an event or a person that died or was born on that day

1757 Born: Heinrich Friedrich Karl vom und zum Stein, Prussian statesman (d. 1831)

Heinrich Friedrich Karl Reichsfreiherr vom und zum Stein (25 October 1757 – 29 June 1831), commonly known as Baron vom Stein, was a Prussian statesman who introduced the Prussian reforms, which paved the way for the unification of Germany. He promoted the abolition of serfdom, with indemnification to territorial lords; subjection of the nobles to manorial imposts; and the establishment of a modern municipal system.

Stein was from an old Franconian family. He was born on the family estate near Nassau, studied at Göttingen, and entered the civil service. Prussian conservatism hampered him in his efforts to bring about changes. In 1807, he was removed from office by the King for refusing to accept the post of Minister of Foreign Affairs but was recalled after the Peace of Tilsit.

After it became known that he had written a letter in which he criticised Napoleon, Stein was obliged to resign, which he did on 24 November 1808 and retired to the Austrian Empire, from which he was summoned to the Russian Empire by Tsar Alexander I in 1812. After the Battle of Leipzig in 1813, Stein became head of the council for the administration of the reconquered German countries.

German stamp depicting Heinrich Friedrich Karl vom und zum Stein

1827 Born: Marcellin Berthelot, French chemist and politician (d. 1907)

Pierre Eugène Marcellin Berthelot (1827–1907) was a French chemist and politician noted for the Thomsen–Berthelot principle of thermochemistry. He synthesized many organic compounds from inorganic substances, providing a large amount of counter-evidence to the theory of Jöns Jakob Berzelius that organic compounds required organisms in their synthesis. Berthelot was convinced that chemical synthesis would revolutionize the food industry by the year 2000, and that synthesized foods would replace farms and pastures. "Why not", he asked, "if it proved cheaper and better to make the same materials than to grow them?"

He was considered "one of the most famous chemists in the world." Upon being appointed to the post of Minister of Foreign Affairs for the French government in 1895, he was considered "the most eminent living chemist" in France. In 1901, he was elected as one of the "Forty Immortals" of the Académie française. He gave all his discoveries not only to the French government but to humanity.

French stamp depicting Marcellin Berthelot

1881 Born: Pablo Picasso, Spanish painter and sculptor (d. 1973)

Pablo Ruiz Picasso (25 October 1881 – 8 April 1973) was a Spanish painter, sculptor, printmaker, ceramicist, stage designer, poet and playwright who spent most of his adult life in France. Regarded as one of the most influential artists of the 20th century, he is known for co-founding the Cubist movement, the invention of constructed sculpture, the co-invention of collage, and for the wide variety of styles that he helped develop and explore. Among his most famous works are the proto-Cubist Les Demoiselles d'Avignon (1907), and Guernica (1937), a dramatic portrayal of the bombing of Guernica by the German and Italian airforces during the Spanish Civil War.

Picasso demonstrated extraordinary artistic talent in his early years, painting in a naturalistic manner through his childhood and adolescence. During the first decade of the 20th century, his style changed as he experimented with different theories, techniques, and ideas. After 1906, the Fauvist work of the slightly older artist Henri Matisse motivated Picasso to explore more radical styles, beginning a fruitful rivalry between the two artists, who subsequently were often paired by critics as the leaders of modern art.

Picasso's work is often categorized into periods. While the names of many of his later periods are debated, the most commonly accepted periods in his work are the Blue Period (1901–1904), the Rose Period (1904–1906), the African-influenced Period (1907–1909), Analytic Cubism (1909–1912), and Synthetic Cubism (1912–1919), also referred to as the Crystal period. Much of Picasso's work of the late 1910s and early 1920s is in a neoclassical style, and his work in the mid-1920s often has characteristics of Surrealism. His later work often combines elements of his earlier styles.

Exceptionally prolific throughout the course of his long life, Picasso achieved universal renown and immense fortune for his revolutionary artistic accomplishments, and became one of the best-known figures in 20th-century art.


French and Spanish stamps depicting Picasso's works

1921 Born: Michael I of Romania (d. 2017)

Michael I (25 October 1921 – 5 December 2017) was the last King of Romania, reigning from 20 July 1927 to 8 June 1930 and again from 6 September 1940 until his forced abdication on 30 December 1947.

Shortly after Michael's birth, his father, Crown Prince Carol of Romania, had become involved in a controversial relationship with Magda Lupescu. In 1925, Carol was pressured to renounce his rights to the throne and moved to Paris in exile with Lupescu. In 1927, Michael ascended the throne, following the death of his grandfather King Ferdinand I. As Michael was still a minor, a regency council was instituted, composed of his uncle Prince Nicholas, Patriarch Miron Cristea, and the president of the Supreme Court, Gheorghe Buzdugan. The council proved to be ineffective and, in 1930, Carol returned to Romania and replaced his son as monarch, reigning as Carol II. As a result, Michael returned to being heir apparent to the throne and was given the additional title of Grand Voievod of Alba-Iulia.

Carol II was deposed in 1940, and Michael once again became king. Under the government led by the military dictator Ion Antonescu, Romania became aligned with Nazi Germany. In 1944, Michael participated in a coup against Antonescu, appointed Constantin Sănătescu as his replacement, and subsequently declared an alliance with the Allies. In March 1945, political pressures forced Michael to appoint a pro-Soviet government headed by Petru Groza. From August 1945 to January 1946, Michael went on a "royal strike" and unsuccessfully tried to oppose Groza's Communist-controlled government by refusing to sign and endorse its decrees. In November 1947, Michael attended the wedding of his cousins, the future Queen Elizabeth II of the United Kingdom and Prince Philip of Greece and Denmark in London. Shortly thereafter, on the morning of 30 December 1947, Groza met with Michael and compelled him to abdicate. Michael was forced into exile, his properties confiscated, and his citizenship stripped. In 1948, he married Princess Anne of Bourbon-Parma (thenceforth known as Queen Anne of Romania), with whom he had five daughters, and the couple eventually settled in Switzerland.

Nicolae Ceaușescu's communist dictatorship was overthrown in 1989 and the following year Michael attempted to return to Romania, only to be arrested and forced to leave upon arrival. In 1992, Michael was allowed to visit Romania for Easter, where he was greeted by huge crowds; a speech he gave from his hotel window drew an estimated one million people to Bucharest. Alarmed by Michael's popularity, the post-communist government of Ion Iliescu refused to allow him any further visits. In 1997, after Iliescu's defeat by Emil Constantinescu in the presidential elections of the previous year, Michael's citizenship was restored and he was allowed to visit Romania again. Several confiscated properties, such as Peleş Castle and Săvârşin Castle, were eventually returned to his family.

Romanian stamps depicting King Michael I

September 29th in stamps Servetus, de Cervantes, Enrico Fermi, Diesel, Émile Zola, Lech Wałęsa

Here are some events that happened on September 29th. It could be an event or a person that died or was born on that day

1511 Born: Michael Servetus, Spanish physician, cartographer, and theologian (d. 1553)

Michael Servetus (Spanish: Miguel Serveto, French: Michel Servet), also known as Miguel Servet, Miguel de Villanueva, Michel Servet, Revés, or Michel de Villeneuve (Tudela, Navarre, 29 September 1509 or 1511 – 27 October 1553), was a Spanish theologian, physician, cartographer, and Renaissance humanist. He was the first European to correctly describe the function of pulmonary circulation, as discussed in Christianismi Restitutio (1553). He was a polymath versed in many sciences: mathematics, astronomy and meteorology, geography, human anatomy, medicine and pharmacology, as well as jurisprudence, translation, poetry and the scholarly study of the Bible in its original languages.

He is renowned in the history of several of these fields, particularly medicine. He participated in the Protestant Reformation, and later rejected the Trinity doctrine and mainstream Catholic Christology. After being condemned by Catholic authorities in France, he fled to Calvinist Geneva where he was burnt at the stake for heresy by order of the city's governing council.

Spanish stamps depicting Servetus

1547 Born: Miguel de Cervantes, Spanish novelist, poet, and playwright (d. 1616)

Miguel de Cervantes Saavedra (29 September 1547 (assumed) – 22 April 1616 ) was a Spanish writer widely regarded as the greatest writer in the Spanish language, and one of the world's pre-eminent novelists. He is best known for his novel Don Quixote, a work often cited as both the first modern novel, and one of the pinnacles of literature.

Much of his life was spent in poverty and obscurity, many of its details are disputed or unknown, and the bulk of his surviving work was produced in the three years preceding his death. Despite this, his influence and literary contribution are reflected by the fact Spanish is often referred to as "the language of Cervantes".

In 1569, Cervantes was forced to leave Spain and moved to Rome, where he worked in the household of a cardinal. In 1570, he enlisted in a Spanish Navy infantry regiment, and was badly wounded at the Battle of Lepanto in October 1571. He served as a soldier until 1575, when he was captured by Barbary pirates; after five years in captivity, he was ransomed, and returned to Madrid.

His first significant novel, titled La Galatea, was published in 1585, but he continued to work as a purchasing agent, then later a government tax collector. Part One of Don Quixote was published in 1605, Part Two in 1615. Other works include the 12 Novelas ejemplares (Exemplary Novels); a long poem, the Viaje del Parnaso (Journey to Parnassus); and Ocho comedias y ocho entremeses (Eight Plays and Eight Entr'actes). Los trabajos de Persiles y Sigismunda (The Travails of Persiles and Sigismunda), was published posthumously in 1616.

Stamps from various countries depicting Cervantes or his works

1901 Born: Enrico Fermi, Italian-American physicist and academic, Nobel Prize laureate (d. 1954)

Enrico Fermi (29 September 1901 – 28 November 1954) was an Italian (later naturalized American) physicist and the creator of the world's first nuclear reactor, the Chicago Pile-1. He has been called the "architect of the nuclear age" and the "architect of the atomic bomb". He was one of very few physicists to excel in both theoretical physics and experimental physics. Fermi was awarded the 1938 Nobel Prize in Physics for his work on induced radioactivity by neutron bombardment and for the discovery of transuranium elements. With his colleagues, Fermi filed several patents related to the use of nuclear power, all of which were taken over by the US government. He made significant contributions to the development of statistical mechanics, quantum theory, and nuclear and particle physics.

Fermi's first major contribution involved the field of statistical mechanics. After Wolfgang Pauli formulated his exclusion principle in 1925, Fermi followed with a paper in which he applied the principle to an ideal gas, employing a statistical formulation now known as Fermi–Dirac statistics. Today, particles that obey the exclusion principle are called "fermions". Pauli later postulated the existence of an uncharged invisible particle emitted along with an electron during beta decay, to satisfy the law of conservation of energy. Fermi took up this idea, developing a model that incorporated the postulated particle, which he named the "neutrino". His theory, later referred to as Fermi's interaction and now called weak interaction, described one of the four fundamental interactions in nature. Through experiments inducing radioactivity with the recently discovered neutron, Fermi discovered that slow neutrons were more easily captured by atomic nuclei than fast ones, and he developed the Fermi age equation to describe this. After bombarding thorium and uranium with slow neutrons, he concluded that he had created new elements. Although he was awarded the Nobel Prize for this discovery, the new elements were later revealed to be nuclear fission products.

Fermi left Italy in 1938 to escape new Italian racial laws that affected his Jewish wife, Laura Capon. He emigrated to the United States, where he worked on the Manhattan Project during World War II. Fermi led the team that designed and built Chicago Pile-1, which went critical on 2 December 1942, demonstrating the first human-created, self-sustaining nuclear chain reaction. He was on hand when the X-10 Graphite Reactor at Oak Ridge, Tennessee, went critical in 1943, and when the B Reactor at the Hanford Site did so the next year. At Los Alamos, he headed F Division, part of which worked on Edward Teller's thermonuclear "Super" bomb. He was present at the Trinity test on 16 July 1945, where he used his Fermi method to estimate the bomb's yield.

After the war, Fermi served under J. Robert Oppenheimer on the General Advisory Committee, which advised the Atomic Energy Commission on nuclear matters. After the detonation of the first Soviet fission bomb in August 1949, he strongly opposed the development of a hydrogen bomb on both moral and technical grounds. He was among the scientists who testified on Oppenheimer's behalf at the 1954 hearing that resulted in the denial of Oppenheimer's security clearance. Fermi did important work in particle physics, especially related to pions and muons, and he speculated that cosmic rays arose when material was accelerated by magnetic fields in interstellar space. Many awards, concepts, and institutions are named after Fermi, including the Enrico Fermi Award, the Enrico Fermi Institute, the Fermi National Accelerator Laboratory (Fermilab), the Fermi Gamma-ray Space Telescope, the Enrico Fermi Nuclear Generating Station, and the synthetic element fermium, making him one of 16 scientists who have elements named after them.

A great and beloved teacher, Fermi tutored or directly influenced no less than 8 young researchers who went on to win Nobel Prizes.

US stamp depicting Enrico Fermi

1902 Died: Émile Zola, French novelist, playwright, journalist (b. 1840)

Émile Édouard Charles Antoine Zola (2 April 1840 – 29 September 1902) was a French novelist, playwright, journalist, the best-known practitioner of the literary school of naturalism, and an important contributor to the development of theatrical naturalism. He was a major figure in the political liberalization of France and in the exoneration of the falsely accused and convicted army officer Alfred Dreyfus, which is encapsulated in the renowned newspaper headline J'Accuse…! Zola was nominated for the first and second Nobel Prize in Literature in 1901 and 1902

More than half of Zola's novels were part of a set of 20 collectively known as Les Rougon-Macquart, about a family under the Second Empire. Unlike Balzac, who in the midst of his literary career resynthesized his work into La Comédie Humaine, Zola from the start, at the age of 28, had thought of the complete layout of the series. Set in France's Second Empire, in the context of Baron Haussman's changing Paris, the series traces the "environmental" influences of violence, alcohol, and prostitution which became more prevalent during the second wave of the Industrial Revolution. The series examines two branches of a family—the respectable (that is, legitimate) Rougons and the disreputable (illegitimate) Macquarts—for five generations.

As he described his plans for the series, "I want to portray, at the outset of a century of liberty and truth, a family that cannot restrain itself in its rush to possess all the good things that progress is making available and is derailed by its own momentum, the fatal convulsions that accompany the birth of a new world."

He is considered to be a significant influence on those writers that are credited with the creation of the so-called new journalism; Wolfe, Capote, Thompson, Mailer, Didion, Talese and others. Tom Wolfe wrote that his goal in writing fiction was to document contemporary society in the tradition of John Steinbeck, Charles Dickens, and Émile Zola.

1913 Died: Rudolf Diesel, German engineer, invented the diesel engine (b. 1858)

Rudolf Christian Karl Diesel (18 March 1858 – 29 September 1913) was a German inventor and mechanical engineer, famous for the invention of the Diesel engine, and for his suspicious death at sea.

In early 1890, Diesel moved to Berlin with his wife and children, Rudolf Jr, Heddy, and Eugen, to assume management of Linde's corporate research and development department and to join several other corporate boards there. As he was not allowed to use the patents he developed while an employee of Linde's for his own purposes, he expanded beyond the field of refrigeration. He first worked with steam, his research into thermal efficiency and fuel efficiency leading him to build a steam engine using ammonia vapour. During tests, however, the engine exploded and almost killed him. His research into high compression cylinder pressures tested the strength of iron and steel cylinder heads. One exploded during a run in. He spent many months in a hospital, followed by health and eyesight problems.

Ever since attending lectures of Carl von Linde, Diesel intended designing an internal combustion engine that could approach the maximum theoretical thermal efficiency of the Carnot cycle. He worked on this idea for several years, and in 1892, he considered his theory to be completed. The same year, Diesel was given the German patent DRP 67207. In 1893, he published a treatise entitled Theory and Construction of a Rational Heat-engine to Replace the Steam Engine and The Combustion Engines Known Today, that he had been working on since early 1892. This treatise formed the basis for his work on and invention of the Diesel engine. By summer 1893, Diesel had realised that his initial theory was erroneous, which led him to file another patent application for the corrected theory in 1893.

Diesel understood thermodynamics and the theoretical and practical constraints on fuel efficiency. He knew that as much as 90% of the energy available in the fuel is wasted in a steam engine. His work in engine design was driven by the goal of much higher efficiency ratios. In his engine, fuel was injected at the end of the compression stroke and was ignited by the high temperature resulting from the compression. From 1893 to 1897, Heinrich von Buz, director of MAN SE in Augsburg, gave Rudolf Diesel the opportunity to test and develop his ideas.

The first successful Diesel engine ran in 1897 and is now on display at the German Technical Museum in Munich.

Rudolf Diesel obtained patents for his design in Germany and other countries, including the United States.

He was inducted into the Automotive Hall of Fame in 1978.

Stamps from Germany and Saarland depicting Diesel

1943 Born: Lech Wałęsa is elected President of Poland.

Lech Wałęsa (born 29 September 1943) is a Polish statesman, dissident, and Nobel Peace Prize laureate, who served as the first democratically elected president of Poland from 1990 to 1995. A shipyard electrician by trade, he became the leader of Solidarity, and led a successful pro-democratic effort which in 1989 ended the communist rule in Poland and ushered in the end of the Cold War.

While working at the Lenin Shipyard (now Gdańsk Shipyard), Wałęsa, an electrician, became a trade-union activist, for which he was persecuted by the Communist authorities, placed under surveillance, fired in 1976, and arrested several times. In August 1980, he was instrumental in political negotiations that led to the ground-breaking Gdańsk Agreement between striking workers and the government. He co-founded the Solidarity trade-union movement which membership rose to over ten million people.

After martial law was imposed in Poland and Solidarity was outlawed, Wałęsa was again arrested. Released from custody, he continued his activism and was prominent in the establishment of the 1989 Round Table Agreement that led to semi-free parliamentary elections in June 1989 and to a Solidarity-led government.

After winning the Polish presidential election of 1990, Wałęsa became the first President of Poland ever elected in a popular vote. He presided over Poland's successful transition from communism into a free-market liberal democracy, but his active role in Polish politics diminished after he narrowly lost the 1995 presidential election. In 1995, he established the Lech Wałęsa Institute.

Since 1980, Wałęsa has received hundreds of prizes, honors and awards from many countries of the world. He was named the Time Person of the Year (1981) and one of Time's 100 most important people of the 20th century (1999). He has received over forty honorary degrees, including from Harvard University and Columbia University, as well as dozens of the highest state orders, including: the Presidential Medal of Freedom, the Knight Grand Cross of the British Order of the Bath, and the French Grand Cross of Legion of Honour. In 1989, Wałęsa was the first foreign non-head of state to address the Joint Meeting of the U.S. Congress. The Gdansk Lech Wałęsa Airport bears his name since 2004.

Polish stamps as well as an underground stamp depicting Lech Wałęsa

August 27th in stamps Lope de Vega, Lyndon B. Johnson, Le Corbusier

Here are some events that happened on August 27th. It could be an event or a person that died or was born on that day

1635 Died: Lope de Vega, Spanish poet and playwright (b. 1562)

Lope Félix de Vega Carpio (25 November 1562 – 27 August 1635) was a Spanish playwright, poet, novelist and marine. He was one of the key figures in the Spanish Golden Age of Baroque literature. His reputation in the world of Spanish literature is second only to that of Miguel de Cervantes, while the sheer volume of his literary output is unequalled, making him one of the most prolific authors in the history of literature. He was nicknamed "The Phoenix of Wits" and "Monster of Nature" (in Spanish: Fénix de los Ingenios, Monstruo de la Naturaleza) by Cervantes because of his prolific nature.

Lope de Vega renewed the Spanish theatre at a time when it was starting to become a mass cultural phenomenon. He defined its key characteristics, and along with Pedro Calderón de la Barca and Tirso de Molina, took Spanish Baroque theatre to its greatest heights. Because of the insight, depth and ease of his plays, he is regarded as one of the greatest dramatists in Western literature, his plays still being produced worldwide. He was also considered one of the best lyric poets in the Spanish language, and wrote several novels. Although not well known in the English-speaking world, his plays were presented in England as late as the 1660s, when diarist Samuel Pepys recorded having attended some adaptations and translations of them, although he omits mentioning the author.

Some 3,000 sonnets, 3 novels, 4 novellas, 9 epic poems, and about 500 plays are attributed to him. Although he has been criticised for putting quantity ahead of quality, nevertheless at least 80 of his plays are considered masterpieces. He was a friend of the writer Francisco de Quevedo and an arch-enemy of the dramatist Juan Ruiz de Alarcón. The volume of his lifework made him envied by not only contemporary authors such as Cervantes and Luis de Góngora, but also by many others: for instance, Johann Wolfgang von Goethe once wished he had been able to produce such a vast and colourful oeuvre.

Spanish stamps and maximum card depicting Lope de Vega

1908 Born: Lyndon B. Johnson, American commander and politician, 36th President of the United States (d. 1973)

Lyndon Baines Johnson (August 27, 1908 – January 22, 1973), often referred to by his initials LBJ, was an American politician who served as the 36th president of the United States from 1963 to 1969, and previously as 37th vice president from 1961 to 1963. He assumed the presidency following the assassination of President John F. Kennedy. A Democrat from Texas, Johnson also served as a United States Representative and as the Majority Leader in the United States Senate. Johnson is one of only four people who have served in all four federal elected positions. 

Born in a farmhouse in Stonewall, Texas, Johnson was a high school teacher and worked as a congressional aide before winning election to the US House of Representatives in 1937. Johnson won election to the United States Senate from Texas in 1948 after winning the Democratic Party's nomination by an incredibly narrow margin. He was appointed to the position of Senate Majority Whip in 1951. He became the Senate Minority Leader in 1953 and the Senate Majority Leader in 1955.

He became known for his domineering personality and the "Johnson treatment", his aggressive coercion of powerful politicians to advance legislation. Along with Speaker of the U.S. House of Representatives Sam Rayburn, Senate Majority Whip Earle Clements, and House Majority Whip Carl Albert, Johnson did not sign the 1956 Southern Manifesto drafted by Dixie South Democrats in the 84th U.S. Congress, despite all representing states where racial segregation of public schools had been legally required prior to the 1954 Brown v. Board of Education U.S. Supreme Court case. As Majority Leader, Johnson shepherded to passage the Civil Rights Acts of 1957 and 1960; the first civil rights bills passed by the U.S. Congress since the Reconstruction Era (1863–1877).

Johnson ran for the Democratic nomination in the 1960 presidential election. Although unsuccessful, he accepted the invitation of then-Senator John F. Kennedy of Massachusetts to be his running mate. They went on to win a close election over the Republican ticket of Richard Nixon and Henry Cabot Lodge Jr. On November 22, 1963, Kennedy was assassinated and Johnson succeeded him as president. The following year, Johnson won in a landslide, defeating Senator Barry Goldwater of Arizona. With 61.1 percent of the popular vote, Johnson won the largest share of the popular vote of any candidate since the largely uncontested 1820 election.

In domestic policy, Johnson designed the "Great Society" legislation to expand civil rights, public broadcasting, Medicare, Medicaid, aid to education, the arts, urban and rural development, public services and his "War on Poverty". Assisted in part by a growing economy, the War on Poverty helped millions of Americans rise above the poverty line during his administration. Civil rights bills that he signed into law banned racial discrimination in public facilities, interstate commerce, the workplace and housing; the Voting Rights Act prohibited certain requirements in southern states used to disenfranchise African Americans. With the passage of the Immigration and Nationality Act of 1965, the country's immigration system was reformed, encouraging greater immigration from regions other than Europe. Johnson's presidency marked the peak of modern liberalism after the New Deal era.

In foreign policy, Johnson escalated American involvement in the Vietnam War. In 1964, Congress passed the Gulf of Tonkin Resolution, which granted Johnson the power to use military force in Southeast Asia without having to ask for an official declaration of war. The number of American military personnel in Vietnam increased dramatically, from 16,000 advisors in non-combat roles in 1963 to 525,000 in 1967, many in combat roles. American casualties soared and the peace process stagnated. Growing unease with the war stimulated a large, angry anti-war movement based chiefly among draft-age students on university campuses.

Johnson faced further troubles when summer riots began in major cities in 1965 and crime rates soared, as his opponents raised demands for "law and order" policies. While Johnson began his presidency with widespread approval, support for him declined as the public became frustrated with both the war and the growing violence at home. In 1968, the Democratic Party factionalized as anti-war elements denounced Johnson; he ended his bid for renomination after a disappointing finish in the New Hampshire primary. Nixon was elected to succeed him, as the New Deal coalition that had dominated presidential politics for 36 years collapsed. After he left office in January 1969, Johnson returned to his Texas ranch, where he died of a heart attack at age 64, on January 22, 1973.

Johnson is ranked favorably by many historians because of his domestic policies and the passage of many major laws that affected civil rights, gun control, wilderness preservation, and Social Security, although he also drew substantial criticism for his escalation of the Vietnam War.

1965 Died:- Le Corbusier, Swiss-French architect and urban planner, designed the Philips Pavilion (b. 1887)

Charles-Édouard Jeanneret (6 October 1887 – 27 August 1965), known as Le Corbusier, was a Swiss-French architect, designer, painter, urban planner, writer, and one of the pioneers of what is now called modern architecture. He was born in Switzerland and became a French citizen in 1930. His career spanned five decades, and he designed buildings in Europe, Japan, India, and North and South America.

Dedicated to providing better living conditions for the residents of crowded cities, Le Corbusier was influential in urban planning, and was a founding member of the Congrès International d'Architecture Moderne (CIAM). Le Corbusier prepared the master plan for the city of Chandigarh in India, and contributed specific designs for several buildings there, specially the government buildings.

On 17 July 2016, seventeen projects by Le Corbusier in seven countries were inscribed in the list of UNESCO World Heritage Sites as The Architectural Work of Le Corbusier, an Outstanding Contribution to the Modern Movement.

Stamps from Monaco and Switzerland depicting Le Corbusier

June 10th in stamps Jardin des Plantes, Nicolaus Otto, Antoni Gaudí

Here are some events that happened on June 10th. It could be an event or a person that died or was born on that day


1793 – The Jardin des Plantes museum opens in Paris. A year later, it becomes the first public zoo.

The Jardin des plantes (French for "Garden of the Plants"), also known as the Jardin des plantes de Paris when distinguished from other jardins des plantes in other cities, is the main botanical garden in France. The term Jardin des plantes is the official name in the present day, but it is in fact an elliptical form of Jardin royal des plantes médicinales ("Royal Garden of the Medicinal Plants"), which is related to the original purpose of the garden back in the 17th century.

Headquarters of the Muséum national d'histoire naturelle (National Museum of Natural History), the Jardin des plantes is situated in the 5th arrondissement, Paris, on the left bank of the river Seine, and covers 28 hectares (280,000 m²). Since 24 March 1993, the entire garden and its contained buildings, archives, libraries, greenhouses, ménagerie (a zoo), works of art, and specimens' collection are classified as a national historical landmark in France (labelled monument historique).

French stamps depicting Jardin des plantes

1832 Born: Nicolaus Otto, German engineer (d. 1891)

Nicolaus August Otto (14 June 1832, Holzhausen an der Haide, Nassau – 26 January 1891, Cologne) was a German engineer who successfully developed the compressed charge internal combustion engine which ran on petroleum gas and led to the modern internal combustion engine. The Association of German Engineers (VDI) created DIN standard 1940 which says "Otto Engine: internal combustion engine in which the ignition of the compressed fuel-air mixture is initiated by a timed spark", which has been applied to all engines of this type since.

German block of 4 depicting Nicolaus Otto

1926 Died: Antoni Gaudí, Spanish architect, designed the Park Güell (b. 1852)

Antoni Gaudí i Cornet (25 June 1852 – 10 June 1926) was a Catalan architect known as the greatest exponent of Catalan Modernism. Gaudí's works have a highly individualized, one-of-a-kind style. Most are located in Barcelona, including his main work, the church of the Sagrada Família.

Gaudí's work was influenced by his passions in life: architecture, nature, and religion. He considered every detail of his creations and integrated into his architecture such crafts as ceramics, stained glass, wrought ironwork forging and carpentry. He also introduced new techniques in the treatment of materials, such as trencadís which used waste ceramic pieces.

Under the influence of neo-Gothic art and Oriental techniques, Gaudí became part of the Modernista movement which was reaching its peak in the late 19th and early 20th centuries. His work transcended mainstream Modernisme, culminating in an organic style inspired by natural forms. Gaudí rarely drew detailed plans of his works, instead preferring to create them as three-dimensional scale models and moulding the details as he conceived them.

Gaudí's work enjoys global popularity and continuing admiration and study by architects. His masterpiece, the still-incomplete Sagrada Família, is the most-visited monument in Spain. Between 1984 and 2005, seven of his works were declared World Heritage Sites by UNESCO. Gaudí's Roman Catholic faith intensified during his life and religious images appear in many of his works. This earned him the nickname "God's Architect" and led to calls for his beatification.

Spanish stamps depicting Gaudi's works

May 11th in stamps von Guericke, Salvador Dalí, Richard Feynman, Harriet Quimby

Here are some events that happened on May 11th. It could be an event or a person that died or was born on that day


1686 Died: Otto von Guericke, German physicist and politician (b. 1602)

Otto von Guericke (November 20, 1602 – May 11, 1686 [Julian calendar]; November 30, 1602 – May 21, 1686 [Gregorian calendar]) was a German scientist, inventor, and politician. His major scientific achievements were the establishment of the physics of vacuums, the discovery of an experimental method for clearly demonstrating electrostatic repulsion, and his advocacy for the reality of "action at a distance" and of "absolute space".

He was also a very spiritual man in the Dionysiac tradition, as were many scientists of the Enlightenment, and connected the vacuum of space to an infinite divinity. Von Guericke described this duality "as something that ‘contains all things’ and is ‘more precious than gold...more joyous that the perception of bountiful light’ and ‘comparable to the heavens’."

German stamp depicting Otto von Guerick

1875 Born: Harriet Quimby, American pilot and screenwriter (d. 1912)

Harriet Quimby (May 11, 1875 – July 1, 1912) was an early American aviation pioneer and a movie screenwriter.

In 1911, she was awarded a U.S. pilot's certificate by the Aero Club of America, becoming the first woman to gain a pilot's license in the United States. In 1912, she became the first woman to fly across the English Channel. Although Quimby lived only to the age of 37, she influenced the role of women in aviation.

After earning her license, the "Dresden China Aviatrix" or "China Doll," as the press called her because of her petite stature and fair skin, moved to capitalize on her new notoriety. Pilots could earn as much as $1,000 per performance, and prize money for a race could go as high as $10,000 or more. Quimby joined the Moisant International Aviators, an exhibition team, and made her professional debut, earning $1,500, in a night flight over Staten Island before a crowd of almost 20,000 spectators.

As one of the country's few female pilots, she capitalized on her femininity by wearing trousers tucked into high lace boots accentuated by a plum-colored satin blouse, necklace, and antique bracelet. She drew crowds whenever she competed in cross-country meets and races. As part of the exhibition team, she showcased her talents around the United States and even went to Mexico City at the end of 1911 to participate in aviation activities held in honor of the inauguration of President Francisco Madero.

On July 1, 1912, she flew in the Third Annual Boston Aviation Meet at Squantum, Massachusetts. Although she had obtained her ACA certificate to be allowed to participate in ACA events, the Boston meet was an unsanctioned contest. Quimby flew out to Boston Light in Boston Harbor at about 3,000 feet, then returned and circled the airfield.

William A.P. Willard, the organizer of the event and father of the aviator Charles Willard, was a passenger in her brand-new two-seat Bleriot monoplane. At an altitude of 1,000 feet (300 m) the aircraft unexpectedly pitched forward for reasons still unknown. Both Willard and Quimby were ejected from their seats and fell to their deaths, while the plane "glided down and lodged itself in the mud".

US airmail stamp depicting Harriet Quimby

1904 Born: Salvador Dalí, Spanish artist (d. 1989)

Salvador Domingo Felipe Jacinto Dalí i Domènech, Marquis of Dalí de Púbol (11 May 1904 – 23 January 1989) was a Spanish Surrealist artist renowned for his technical skill, precise draftsmanship and the striking and bizarre images in his work.

Born in Figueres, Catalonia, Dalí received his formal education in fine arts at Madrid. Influenced by Impressionism and the Renaissance masters from a young age, he became increasingly attracted to Cubism and avant-garde movements. He moved closer to Surrealism in the late 1920s and joined the Surrealist group in 1929, soon becoming one of its leading exponents. His best-known work, The Persistence of Memory, was completed in August 1931, and is one of the most famous Surrealist paintings. Dalí lived in France throughout the Spanish Civil War (1936 to 1939) before leaving for the United States in 1940 where he achieved commercial success. He returned to Catalonia in 1948 where he announced his return to the Catholic faith and developed his "nuclear mysticism" style, based on his interest in classicism, mysticism and recent scientific developments.

Dalí's artistic repertoire included painting, graphic arts, film, sculpture, design and photography, at times in collaboration with other artists. He also wrote fiction, poetry, autobiography, essays and criticism. Major themes in his work include dreams, the subconscious, sexuality, religion, science and his closest personal relationships. To the dismay of those who held his work in high regard, and to the irritation of his critics, his eccentric and ostentatious public behavior sometimes drew more attention than his artwork. His public support for the Francoist regime, his commercial activities and the quality and authenticity of some of his late works have also been controversial. His life and work were an important influence on other Surrealists, pop art and contemporary artists such as Jeff Koons and Damien Hirst. There are two major museums devoted to his work: The Dalí Theatre-Museum in Figueres, Spain and the Salvador Dalí Museum in Florida.

Stamps from Spain, France and Germany depicting Salvador Dali or his works

1918 Born:  Richard Feynman, American physicist and engineer, Nobel Prize laureate (d. 1988)

Richard Phillips Feynman (May 11, 1918 – February 15, 1988) was an American theoretical physicist, known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics for which he proposed the parton model. For contributions to the development of quantum electrodynamics, Feynman received the Nobel Prize in Physics in 1965 jointly with Julian Schwinger and Shin'ichirō Tomonaga.

Feynman developed a widely used pictorial representation scheme for the mathematical expressions describing the behavior of subatomic particles, which later became known as Feynman diagrams. During his lifetime, Feynman became one of the best-known scientists in the world. In a 1999 poll of 130 leading physicists worldwide by the British journal Physics World, he was ranked as one of the ten greatest physicists of all time.

He assisted in the development of the atomic bomb during World War II and became known to a wide public in the 1980s as a member of the Rogers Commission, the panel that investigated the Space Shuttle Challenger disaster. Along with his work in theoretical physics, Feynman has been credited with pioneering the field of quantum computing and introducing the concept of nanotechnology. He held the Richard C. Tolman professorship in theoretical physics at the California Institute of Technology.

Feynman was a keen popularizer of physics through both books and lectures, including a 1959 talk on top-down nanotechnology called There's Plenty of Room at the Bottom and the three-volume publication of his undergraduate lectures, The Feynman Lectures on Physics. Feynman also became known through his semi-autobiographical books Surely You're Joking, Mr. Feynman! and What Do You Care What Other People Think?, and books written about him such as Tuva or Bust! by Ralph Leighton and the biography Genius: The Life and Science of Richard Feynman by James Gleick.

US stamp and First Day Cover depicting Richard Feynman