April 19th in stamps James Cook, Note on the Theory of Diffraction, Lord Byron, Treaty of London, Konrad Adenauer, José Echegaray

Here are some events that happened on April 19th. It could be an event or a person that died or was born on that day

1770 – Captain James Cook, still holding the rank of lieutenant, sights the eastern coast of what is now Australia.

Captain James Cook (7 November 1728 – 14 February 1779) was a British explorer, navigator, cartographer, and captain in the Royal Navy. He made detailed maps of Newfoundland prior to making three voyages to the Pacific Ocean, during which he achieved the first recorded European contact with the eastern coastline of Australia and the Hawaiian Islands, and the first recorded circumnavigation of New Zealand.

Cook joined the British merchant navy as a teenager and joined the Royal Navy in 1755. He saw action in the Seven Years' War and subsequently surveyed and mapped much of the entrance to the Saint Lawrence River during the siege of Quebec, which brought him to the attention of the Admiralty and Royal Society. This acclaim came at a crucial moment in his career and the direction of British overseas exploration, and led to his commission in 1766 as commander of HM Bark Endeavour for the first of three Pacific voyages.

In these voyages, Cook sailed thousands of miles across largely uncharted areas of the globe. He mapped lands from New Zealand to Hawaii in the Pacific Ocean in greater detail and on a scale not previously charted by Western explorers. He surveyed and named features, and recorded islands and coastlines on European maps for the first time. He displayed a combination of seamanship, superior surveying and cartographic skills, physical courage, and an ability to lead men in adverse conditions.

Cook was attacked and killed in 1779 during his third exploratory voyage in the Pacific while attempting to kidnap the Island of Hawaii's monarch, Kalaniʻōpuʻu, in order to reclaim a cutter stolen from one of his ships. He left a legacy of scientific and geographical knowledge that influenced his successors well into the 20th century, and numerous memorials worldwide have been dedicated to him.

Stamps from Australia, Cook Islands and the United States depicting James Cook

1818 – French physicist Augustin Fresnel signs his preliminary "Note on the Theory of Diffraction" (deposited on the following day). The document ends with what we now call the Fresnel integrals.

Augustin-Jean Fresnel (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton's corpuscular theory, from the late 1830s  until the end of the 19th century. He is perhaps better known for inventing the catadioptric (reflective/refractive) Fresnel lens and for pioneering the use of "stepped" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler dioptric (purely refractive) stepped lens, first proposed by Count Buffon  and independently reinvented by Fresnel, is used in screen magnifiers and in condenser lenses for overhead projectors.

By expressing Huygens's principle of secondary waves and Young's principle of interference in quantitative terms, and supposing that simple colors consist of sinusoidal waves, Fresnel gave the first satisfactory explanation of diffraction by straight edges, including the first satisfactory wave-based explanation of rectilinear propagation. Part of his argument was a proof that the addition of sinusoidal functions of the same frequency but different phases is analogous to the addition of forces with different directions. By further supposing that light waves are purely transverse, Fresnel explained the nature of polarization, the mechanism of chromatic polarization, and the transmission and reflection coefficients at the interface between two transparent isotropic media. Then, by generalizing the direction-speed-polarization relation for calcite, he accounted for the directions and polarizations of the refracted rays in doubly-refractive crystals of the biaxial class (those for which Huygens's secondary wavefronts are not axisymmetric). The period between the first publication of his pure-transverse-wave hypothesis, and the submission of his first correct solution to the biaxial problem, was less than a year.

Later, he coined the terms linear polarization, circular polarization, and elliptical polarization, explained how optical rotation could be understood as a difference in propagation speeds for the two directions of circular polarization, and (by allowing the reflection coefficient to be complex) accounted for the change in polarization due to total internal reflection, as exploited in the Fresnel rhomb. Defenders of the established corpuscular theory could not match his quantitative explanations of so many phenomena on so few assumptions.

Fresnel had a lifelong battle with tuberculosis, to which he succumbed at the age of 39. Although he did not become a public celebrity in his lifetime, he lived just long enough to receive due recognition from his peers, including (on his deathbed) the Rumford Medal of the Royal Society of London, and his name is ubiquitous in the modern terminology of optics and waves. After the wave theory of light was subsumed by Maxwell's electromagnetic theory in the 1860s, some attention was diverted from the magnitude of Fresnel's contribution. In the period between Fresnel's unification of physical optics and Maxwell's wider unification, a contemporary authority, Humphrey Lloyd, described Fresnel's transverse-wave theory as "the noblest fabric which has ever adorned the domain of physical science, Newton's system of the universe alone excepted."

French stamp depicting Augustin Fresnel

1824 Died: Lord Byron, English-Scottish poet and playwright (b. 1788)

George Gordon Byron, 6th Baron Byron (22 January 1788 – 19 April 1824), known simply as Lord Byron, was an English peer, who was a poet and politician. He was one of the leading figures of the Romantic movement and is regarded as one of the greatest English poets. He remains widely read and influential. Among his best-known works are the lengthy narrative poems Don Juan and Childe Harold's Pilgrimage; many of his shorter lyrics in Hebrew Melodies also became popular.

He travelled extensively across Europe, especially in Italy, where he lived for seven years in the cities of Venice, Ravenna, and Pisa. During his stay in Italy he frequently visited his friend and fellow poet Percy Bysshe Shelley. Later in life Byron joined the Greek War of Independence fighting the Ottoman Empire and died of disease leading a campaign during that war, for which Greeks revere him as a national hero. He died in 1824 at the age of 36 from a fever contracted after the First and Second Siege of Missolonghi.

His only marital child, Ada Lovelace, is regarded as a foundational figure in the field of computer programming based on her notes for Charles Babbage's Analytical Engine. Byron's extramarital children include Allegra Byron, who died in childhood, and possibly Elizabeth Medora Leigh, daughter of his half-sister Augusta Leigh.

Stamps from Greece, Hungary and Russia depicting Lord Byron

1832 Born: José Echegaray, Spanish engineer, mathematician, and playwright, Nobel Prize laureate (d. 1916)

José Echegaray y Eizaguirre (19 April 1832 – 14 September 1916) was a Spanish civil engineer, mathematician, statesman, and one of the leading Spanish dramatists of the last quarter of the 19th century. He was awarded the 1904 Nobel Prize for Literature "in recognition of the numerous and brilliant compositions which, in an individual and original manner, have revived the great traditions of the Spanish drama".

Theater had always been the love of José Echegaray's life. Although he had written earlier plays (La Hija natural and La Última Noche, both in 1867), he truly became a dramatist in 1874. His plays reflected his sense of duty, which had made him famous during his time in the governmental offices. Dilemmas centered on duty and morality are the motif of his plays. He replicated the achievements of his predecessors of the Spanish Golden Age, remaining a prolific playwright.

His most famous play is El gran Galeoto, a drama written in the grand nineteenth century manner of melodrama. It is about the poisonous effect that unfounded gossip has on a middle-aged man's happiness. Echegaray filled it with elaborate stage instructions that illuminate what we would now consider a hammy style of acting popular in the 19th century. Paramount Pictures filmed it as a silent with the title changed to The World and His Wife, and it was the basis for a later film The Great Galeoto. His most remarkable plays are O locura o santidad (Saint or Madman?, 1877); Mariana (1892); El estigma (1895); La duda, 1898; and El loco Dios (God, the fool, 1900).

Among his other famous plays are La esposa del vengador (1874) (The Avenger's Wife); En el puño de la espada (1875) (In the Sword's Handle); En el pilar y en la cruz (1878) (On the Stake and on the Cross); and Conflicto entre dos deberes (1882) (Conflict of Two Duties).

Along with the Provençal poet Frédéric Mistral, he was awarded the Nobel Prize for Literature in 1904, after having been nominated that year by a member of the Royal Spanish Academy, making him the first Spaniard to win the prize.

José Echegaray maintained constant activity until his death on 14 September 1916 in Madrid. His extensive work did not stop growing in his old age: in the final stage of his life he wrote 25 or 30 mathematical physics volumes. At the age of 83 he commented:

I cannot die, because if I am going to write my mathematical physics encyclopedia, I need at least 25 more years.

Swedish stamp depicting Echegaray 

1839 – The Treaty of London establishes Belgium as a kingdom and guarantees its neutrality.

The Treaty of London of 1839, also called the First Treaty of London, the Convention of 1839, the Treaty of Separation, the Quintuple Treaty of 1839, or the Treaty of the XXIV articles, was a treaty signed on 19 April 1839 between the Concert of Europe, the United Kingdom of the Netherlands and the Kingdom of Belgium. It was a direct follow-up to the 1831 Treaty of the XVIII Articles which the Netherlands had refused to sign, and the result of negotiations at the London Conference of 1838–1839.

Under the treaty, the European powers recognised and guaranteed the independence and neutrality of Belgium and established the full independence of the German-speaking part of Luxembourg. Article VII required Belgium to remain perpetually neutral, and by implication committed the signatory powers to guard that neutrality in the event of invasion.

Stamps from Belgium depicting Leopold I who was the first King of the Belgians

1967 Died: Konrad Adenauer, German politician, 1st Chancellor of Germany (b. 1876)

Konrad Hermann Joseph Adenauer (German: [ˈkɔnʁaːt ˈʔaːdənaʊɐ] (About this soundlisten); 5 January 1876 – 19 April 1967) was a German statesman who served as the first Chancellor of the Federal Republic of Germany (West Germany) from 1949 to 1963. He was co-founder and first leader of the Christian Democratic Union (CDU) (until 1966), a Christian Democratic party that under his leadership became one of the most influential parties in the country.

In the early years of the Federal Republic he switched focus from denazification to recovery and led his country from the ruins of World War II to becoming a productive and prosperous nation that forged close relations with France, the United Kingdom and the United States.  During his years in power, West Germany achieved democracy, stability, international respect and economic prosperity ("Wirtschaftswunder", German for "economic miracle").

Adenauer belied his age by his intense work habits and his uncanny political instinct. He displayed a strong dedication to a broad vision of market-based liberal democracy and anti-communism. A shrewd politician, Adenauer was deeply committed to a Western-oriented foreign policy and restoring the position of West Germany on the world stage. He worked to restore the West German economy from the destruction of World War II to a central position in Europe, presiding over the German Economic Miracle together with his Minister of Economics, Ludwig Erhard. He was a driving force in re-establishing national military forces (the Bundeswehr) in West Germany since 1955. Adenauer opposed rival East Germany and made his nation a member of NATO and a member of the Western Alliance.

Adenauer, who was Chancellor until age 87, was dubbed "Der Alte" ("the elder"). British politician and historian Roy Jenkins says he was "the oldest statesman ever to function in elected office." He remains the oldest head of government for a major country.

A devout Roman Catholic and member of the Catholic Centre Party, he was a leading politician in the Weimar Republic, serving as Mayor of Cologne (1917–1933) and as president of the Prussian State Council (1922–1933).

March 24th in stamps Michiel de Ruyter, Houdini, discovery of Mycobacterium tuberculosis, Jules Verne, Auguste Piccard

Here are some events that happened on March 24th. It could be an event or a person that died or was born on that day

1607 Born: Michiel de Ruyter, Dutch admiral (d. 1667)

Michiel Adriaenszoon de Ruyter (24 March 1607 – 29 April 1676) was a Dutch admiral. Widely celebrated and regarded as one of the most skilled admirals in history, De Ruyter is arguably most famous for his achievements with the Dutch Navy during the Anglo-Dutch Wars. He fought the English and French forces and scored several critical victories, with the Raid on the Medway being the most famous among them.

Often dubbed a Dutch folk hero, De Ruyter is one of a few select officers in the history of the Dutch navy to hold the title of the lieutenant admiral (Dutch: luitenant-admiraal). Reportedly beloved by his subordinates and seamen, De Ruyter was commonly nicknamed Bestevaêr (Middle Dutch for "grandfather") during his service, a nickname that is sometimes still used to refer to him in Dutch media.

Dutch stamps issued depicting Michiel de Ruyter

1874 Born: Harry Houdini, Hungarian-Jewish American magician and actor (d. 1926)

Harry Houdini (born Erik Weisz, later Ehrich Weiss or Harry Weiss; March 24, 1874 – October 31, 1926) was a Hungarian-born American illusionist and stunt performer, noted for his sensational escape acts. He first attracted notice in vaudeville in the United States and then as "Harry 'Handcuff' Houdini" on a tour of Europe, where he challenged police forces to keep him locked up. Soon he extended his repertoire to include chains, ropes slung from skyscrapers, straitjackets under water, and having to escape from and hold his breath inside a sealed milk can with water in it.

In 1904, thousands watched as he tried to escape from special handcuffs commissioned by London's Daily Mirror, keeping them in suspense for an hour. Another stunt saw him buried alive and only just able to claw himself to the surface, emerging in a state of near-breakdown. While many suspected that these escapes were faked, Houdini presented himself as the scourge of fake spiritualists. As President of the Society of American Magicians, he was keen to uphold professional standards and expose fraudulent artists. He was also quick to sue anyone who imitated his escape stunts.

Houdini made several movies but quit acting when it failed to bring in money. He was also a keen aviator and aimed to become the first man to fly a plane in Australia.

US stamp and FDC depicting Houdini

1882 – Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis.

Heinrich Hermann Robert Koch (11 December 1843 – 27 May 1910) was a German physician and microbiologist. As one of the main founders of modern bacteriology, he identified the specific causative agents of tuberculosis, cholera, and anthrax and gave experimental support for the concept of infectious disease, which included experiments on humans and other animals. Koch created and improved laboratory technologies and techniques in the field of microbiology, and made key discoveries in public health. His research led to the creation of Koch's postulates, a series of four generalized principles linking specific microorganisms to specific diseases that remain today the "gold standard" in medical microbiology.


During his time as the government advisor with the Imperial Department of Health in Berlin in the 1880s, Robert Koch became interested in tuberculosis research. At the time, it was widely believed that tuberculosis was an inherited disease. However, Koch was convinced that the disease was caused by a bacterium and was infectious, and tested his four postulates using guinea pigs. Through these experiments, he found that his experiments with tuberculosis satisfied all four of his postulates. In 1882, he published his findings on tuberculosis, in which he reported the causative agent of the disease to be the slow-growing Mycobacterium tuberculosis.

For his research on tuberculosis, Koch received the Nobel Prize in Physiology or Medicine in 1905. The Robert Koch Institute is named in his honor.

1905 Died: Jules Verne, French novelist, poet, and playwright (b. 1828)

Jules Gabriel Verne (8 February 1828 – 24 March 1905) was a French novelist, poet, and playwright.

Verne's collaboration with the publisher Pierre-Jules Hetzel led to the creation of the Voyages extraordinaires, a widely popular series of scrupulously researched adventure novels including Journey to the Center of the Earth (1864), Twenty Thousand Leagues Under the Sea (1870), and Around the World in Eighty Days (1873).

Verne is generally considered a major literary author in France and most of Europe, where he has had a wide influence on the literary avant-garde and on surrealism. His reputation was markedly different in Anglophone regions where he had often been labeled a writer of genre fiction or children's books, largely because of the highly abridged and altered translations in which his novels have often been printed (until the 1980s, when his "literary reputation ... began to improve").

Verne has been the second most-translated author in the world since 1979, ranking between Agatha Christie and William Shakespeare. He has sometimes been called the "Father of Science Fiction", a title that has also been given to H. G. Wells, Mary Shelley, and Hugo Gernsback.

Stamps from various countries issued to commemorate Jules Verne and his works

1962 Died: Auguste Piccard, Swiss physicist and explorer (b. 1884)

Auguste Antoine Piccard (28 January 1884 – 24 March 1962) was a Swiss physicist, inventor and explorer, known for his record-breaking helium-filled balloon flights, with which he studied the Earth's upper atmosphere. Auguste was also known for his invention of the first bathyscaphe, FNRS-2, with which he made a number of unmanned dives in 1948 to explore the ocean's depths.

Piccard's twin brother Jean Felix Piccard is also a notable figure in the annals of science and exploration, as are a number of their relatives, including Jacques Piccard, Bertrand Piccard, Jeannette Piccard and Don Piccard.

Stamps depicting Auguste Piccard or his balloons

March 17th in stamps Gottlieb Daimler, William II, Christian Doppler, Nat King Cole

Here are some events that happened on March 17th. It could be an event or a person that died or was born on that day

1834 Born: Gottlieb Daimler, German engineer and businessman, co-founded Daimler-Motoren-Gesellschaft (d. 1900)

Gottlieb Wilhelm Daimler (17 March 1834 – 6 March 1900) was an engineer, industrial designer and industrialist born in Schorndorf (Kingdom of Württemberg, a federal state of the German Confederation), in what is now Germany. He was a pioneer of internal-combustion engines and automobile development. He invented the high-speed liquid petroleum-fuelled engine.

Daimler and his lifelong business partner Wilhelm Maybach were two inventors whose goal was to create small, high-speed engines to be mounted in any kind of locomotion device. In 1883 they designed a horizontal cylinder layout compressed charge liquid petroleum engine that fulfilled Daimler's desire for a high speed engine which could be throttled, making it useful in transportation applications. This engine was called Daimler's Dream.

In 1885 they designed a vertical cylinder version of this engine which they subsequently fitted to a two-wheeler, the first internal combustion motorcycle which was named the Petroleum Reitwagen (Riding Car) and, in the next year, to a coach, and a boat. Daimler called this engine the grandfather clock engine (Standuhr) because of its resemblance to a large pendulum clock.

In 1890, they converted their partnership into a stock company Daimler Motoren Gesellschaft (DMG, in English—Daimler Motors Corporation). They sold their first automobile in 1892. Daimler fell ill and took a break from the business. Upon his return he experienced difficulty with the other stockholders that led to his resignation in 1893. This was reversed in 1894. Maybach resigned at the same time, and also returned. In 1900 Daimler died and Wilhelm Maybach quit DMG in 1907.

German and Hungarian stamps depicting Gottlieb Daimler or his cars

1849 Died: William II, Dutch sovereign prince and king (b. 1792)

William II (Willem Frederik George Lodewijk, anglicized as William Frederick George Louis; 6 December 1792 – 17 March 1849) was King of the Netherlands, Grand Duke of Luxembourg, and Duke of Limburg.

William II was the son of William I and Wilhelmine of Prussia. When his father, who up to that time ruled as sovereign prince, proclaimed himself king in 1815, he became Prince of Orange as heir apparent of the Kingdom of the Netherlands. With the abdication of his father on 7 October 1840, William II became king. During his reign, the Netherlands became a parliamentary democracy with the new constitution of 1848.

William II was married to Anna Pavlovna of Russia. They had four sons and one daughter. William II died on 17 March 1849 and was succeeded by his son William III.

Dutch stamps from 1913 depicting Willem II

1853 Died: Christian Doppler, Austrian physicist and mathematician (b. 1803)

Christian Andreas Doppler (29 November 1803 – 17 March 1853) was an Austrian mathematician and physicist. He is celebrated for his principle – known as the Doppler effect – that the observed frequency of a wave depends on the relative speed of the source and the observer. He used this concept to explain the color of binary stars.

The Doppler effect (or the Doppler shift) is the change in frequency of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.

A common example of Doppler shift is the change of pitch heard when a vehicle sounding a horn approaches and recedes from an observer. Compared to the emitted frequency, the received frequency is higher during the approach, identical at the instant of passing by, and lower during the recession.

The reason for the Doppler effect is that when the source of the waves is moving towards the observer, each successive wave crest is emitted from a position closer to the observer than the crest of the previous wave. Therefore, each wave takes slightly less time to reach the observer than the previous wave. Hence, the time between the arrivals of successive wave crests at the observer is reduced, causing an increase in the frequency. While they are traveling, the distance between successive wave fronts is reduced, so the waves "bunch together". Conversely, if the source of waves is moving away from the observer, each wave is emitted from a position farther from the observer than the previous wave, so the arrival time between successive waves is increased, reducing the frequency. The distance between successive wave fronts is then increased, so the waves "spread out".

For waves that propagate in a medium, such as sound waves, the velocity of the observer and of the source are relative to the medium in which the waves are transmitted. The total Doppler effect may therefore result from motion of the source, motion of the observer, or motion of the medium. Each of these effects is analyzed separately. For waves which do not require a medium, such as light or gravity in general relativity, only the relative difference in velocity between the observer and the source needs to be considered.

Austrian stamp depicting Doppler

1919 Born: Nat King Cole, American singer, pianist, and television host (d. 1965)

Nathaniel Adams Coles (March 17, 1919 – February 15, 1965), known professionally as Nat King Cole, was an American singer and jazz pianist. He recorded over 100 songs that became hits on the pop charts. His trio was the model for small jazz ensembles that followed. Cole also acted in films and on television and performed on Broadway. He was the first African-American man to host an American television series. He was the father of singer-songwriter Natalie Cole (1950–2015).

US stamp depicting Nat King Cole

February 27th in stamps Lord Byron, John Steinbeck, Bayern München, Ivan Pavlov,

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

1812 – Poet Lord Byron gives his first address as a member of the House of Lords, in defense of Luddite violence against Industrialism in his home county of Nottinghamshire.

George Gordon Byron, 6th Baron Byron (22 January 1788 – 19 April 1824), known simply as Lord Byron, was an English peer, who was a poet and politician. He was one of the leading figures of the Romantic movement and is regarded as one of the greatest English poets. He remains widely read and influential. Among his best-known works are the lengthy narrative poems Don Juan and Childe Harold's Pilgrimage; many of his shorter lyrics in Hebrew Melodies also became popular.

He travelled extensively across Europe, especially in Italy, where he lived for seven years in the cities of Venice, Ravenna, and Pisa. During his stay in Italy he frequently visited his friend and fellow poet Percy Bysshe Shelley. Later in life Byron joined the Greek War of Independence fighting the Ottoman Empire and died of disease leading a campaign during that war, for which Greeks revere him as a national hero. He died in 1824 at the age of 36 from a fever contracted after the First and Second Siege of Missolonghi.

His only marital child, Ada Lovelace, is regarded as a foundational figure in the field of computer programming based on her notes for Charles Babbage's Analytical Engine. Byron's extramarital children include Allegra Byron, who died in childhood, and possibly Elizabeth Medora Leigh, daughter of his half-sister Augusta Leigh.

Stamps from Greece, Hungary and Russia depicting Lord Byron

1900 – Fußball-Club Bayern München is founded.

Fußball-Club Bayern München e.V. commonly known as FC Bayern München, FCB, Bayern Munich, or FC Bayern, is a German professional sports club based in Munich, Bavaria. It is best known for its professional football team, which plays in the Bundesliga, the top tier of the German football league system, and is the most successful club in German football history, having won a record 30 national titles, including eight consecutively since 2013, and 20 national cups, along with numerous European honors.

FC Bayern Munich was founded in 1900 by 11 football players, led by Franz John. Although Bayern won its first national championship in 1932, the club was not selected for the Bundesliga at its inception in 1963. The club had its period of greatest success in the middle of the 1970s when, under the captaincy of Franz Beckenbauer, it won the European Cup three consecutive times (1974–1976). Overall, Bayern have reached eleven European Cup/UEFA Champions League finals, most recently winning their sixth title in 2020 as part of a continental treble. By winning their sixth Champions League trophy in 2020, Bayern became only the second European club in history to achieve the continental treble twice. Bayern has also won one UEFA Cup, one European Cup Winners' Cup, two UEFA Super Cups, one FIFA Club World Cup and two Intercontinental Cups, making it one of the most successful European clubs internationally and the only German club to have won both international titles. Since the formation of the Bundesliga, Bayern has been the dominant club in German football, winning 30 titles. The club has traditional local rivalries with 1860 Munich and 1. FC Nürnberg, as well as with Borussia Dortmund since the mid-1990s.

Since the beginning of the 2005–06 season, Bayern has played its home games at the Allianz Arena. Previously the team had played at Munich's Olympiastadion for 33 years. The team colors are red and white, and the team crest shows the white and blue flag of Bavaria. In terms of revenue, Bayern Munich is the largest sports club in Germany and the fourth highest-earning football club in the world, generating €660.1 million in 2020. For the 2018–19 season, Bayern reported a revenue of €750.4 million and an operating profit of €146.1 million. This was Bayern's 27th consecutive year with a profit. In November 2019, Bayern had 293,000 official members and there are 4,499 officially registered fan clubs with over 358,151 members. The club has other departments for chess, handball, basketball, gymnastics, bowling, table tennis and senior football with more than 1,100 active members. At the end of the 2019–20 season, Bayern was ranked first in the UEFA club coefficient rankings.

German stamps issued to commemorate Bayern München's successes

1902 Born: John Steinbeck, American journalist and author, Nobel Prize laureate (d. 1968)

John Ernst Steinbeck Jr. (February 27, 1902 – December 20, 1968) was an American author and the 1962 Nobel Prize in Literature winner "for his realistic and imaginative writings, combining as they do sympathetic humour and keen social perception." He has been called "a giant of American letters," and many of his works are considered classics of Western literature.

During his writing career, he authored 33 books, with one book coauthored alongside Edward Ricketts, including 16 novels, six non-fiction books, and two collections of short stories. He is widely known for the comic novels Tortilla Flat (1935) and Cannery Row (1945), the multi-generation epic East of Eden (1952), and the novellas The Red Pony (1933) and Of Mice and Men (1937). The Pulitzer Prize-winning The Grapes of Wrath (1939) is considered Steinbeck's masterpiece and part of the American literary canon. In the first 75 years after it was published, it sold 14 million copies.

Most of Steinbeck's work is set in central California, particularly in the Salinas Valley and the California Coast Ranges region. His works frequently explored the themes of fate and injustice, especially as applied to downtrodden or everyman protagonists.

US stamp and FDC commemorating John Steinbeck

1936 Died: Ivan Pavlov, Russian physiologist and physician, Nobel Prize laureate (b. 1849)

Ivan Petrovich Pavlov (Russian: Ива́н Петро́вич Па́влов; 26 September 1849 – 27 February 1936) was a Russian physiologist known primarily for his work in classical conditioning.

From his childhood days Pavlov demonstrated intellectual curiosity along with an unusual energy which he referred to as "the instinct for research". Inspired by the progressive ideas which Dmitry Pisarev, a Russian literary critic of the 1860s, and Ivan Sechenov, the father of Russian physiology, were spreading, Pavlov abandoned his religious career and devoted his life to science. In 1870, he enrolled in the physics and mathematics department at the University of Saint Petersburg to study natural science.

Pavlov won the Nobel Prize for Physiology or Medicine in 1904, becoming the first Russian Nobel laureate. A survey in the Review of General Psychology, published in 2002, ranked Pavlov as the 24th most cited psychologist of the 20th century. Pavlov's principles of classical conditioning have been found to operate across a variety of behavior therapies and in experimental and clinical settings, such as educational classrooms and even reducing phobias with systematic desensitization.

Stamps from Hungary,  Romania, Argentina and Russia depicting Ivan Pavlov