September 16th in stamps Fahrenheit, Nicolas Baudin, Pedro V of Portugal

Here are some events that happened on September 16th. It could be an event or a person that died or was born on that day

1736 – Daniel Gabriel Fahrenheit, Polish-Dutch physicist and engineer, invented the thermometer (b. 1686)

Daniel Gabriel Fahrenheit (24 May 1686 – 16 September 1736) was a physicist, inventor, and scientific instrument maker. Fahrenheit was born in Danzig (Gdańsk), then a predominantly German-speaking city in the Pomeranian Voivodeship of the Polish–Lithuanian Commonwealth, but lived most of his life in the Dutch Republic (1701–1736) and was one of the notable figures in the Golden Age of Dutch science and technology.

A pioneer of exact thermometry, he helped lay the foundations for the era of precision thermometry by inventing the mercury-in-glass thermometer (first widely used, practical, accurate thermometer) and Fahrenheit scale (first standardized temperature scale to be widely used). In other words, Fahrenheit's inventions ushered in the first revolution in the history of thermometry (branch of physics concerned with methods of temperature measurement). From the early 1710s until the beginnings of the electronic era, mercury-in-glass thermometers were among the most reliable and accurate thermometers ever invented.

German stamp and First Day Cover depicting Fahrenheit's scale

1803 Died: Nicolas Baudin, French explorer, hydrographer, and cartographer (b. 1754)

Nicolas Thomas Baudin (17 February 1754 – 16 September 1803) was a French explorer, cartographer, naturalist and hydrographer.

In October 1800 Baudin was selected by Bonaparte to lead what has become known as the Baudin expedition to map the coast of Australia (New Holland). He had two ships, Géographe and Naturaliste captained by Hamelin, and a suite of nine zoologists and botanists, including Jean Baptiste Leschenault de la Tour. Nicolas Baudin left Le Havre on 19 October 1800, stopped off in Santa Cruz de Tenerife, then sailed straight to the Ile de France arriving on 15 March 1801, 145 days later. The voyage, overlong with early rationing left sailors and scientists feeling discouraged, but the colony was happy to build up the crews in case of conflict and to make use of the new skills they brought with them. He reached Australia in May 1801, and would explore and map the western coast and a part of the little-known southern coast of the continent. The scientific expedition proved a great success, with more than 2500 new species discovered. The French also met Aboriginal peoples and treated them with great respect.

In April 1802 Baudin met Matthew Flinders, also engaged in charting the coastline, in Encounter Bay in present-day South Australia. Baudin then stopped at the British colony at Sydney for supplies, and from there he sent home the Naturaliste, carrying all of the specimens that had been collected by both ships up to that time. Realising that the Géographe could not venture into some of the shallow waters along the Australian coast that he was intending to survey, he bought a new ship — Casuarina — named after the wood it was made from, and placed it under the command of Louis de Freycinet, who would 15 years later make his own circumnavigation in the corvette l'Uranie. He then headed back to Tasmania, before continuing along the southern and western coasts of Australia to Timor, mapping as he went. In very poor health, he then turned for home, stopping at Mauritius, where he died.

According to recent researches by academics from the University of Adelaide, during Baudin's expedition, François Péron, who had become the chief zoologist and intellectual leader of the mission, wrote a report for Napoleon on ways to invade and capture the British colony at Sydney Cove.

Baudin died of tuberculosis at Mauritius on 16 September 1803, at the age of 49, apparently in the home of Madame Alexandrine Kerivel. Baudin's exact resting place is not known, but the historian Auguste Toussaint believed that he was interred in the Kerivel family vault.

In South Australia, the following places bear Baudin's name – Baudin Beach on Kangaroo Island, Baudin Rocks on the south-east coast of the state and Nicolas Baudin Island on the west coast of Eyre Peninsula. A number of monuments have been established around Australia, including eight at various locations around Western Australia.

Six animals are named in honour of Baudin:

Calyptorhynchus baudinii Lear, 1832 – Baudin's black cockatoo

Smilisca baudinii (A.M.C. Duméril & Bibron, 1841) – common Mexican tree frog (Hylidae)

Emoia baudini (A.M.C. Duméril & Bibron, 1839) – Baudin's emo skink (Scincidae)

Pseudemoia baudini (Greer, 1982) – Bight Coast skink (Scincidae)

Zanclea baudini Gershwin & Zeidler, 2003 – a jellyfish (Zancleidae)

Baudin pig – a once feral landrace on Kangaroo Island

Stamps from France and Australia depicting Baudin

1837 Born: Pedro V of Portugal (d. 1861)

Peter V (Portuguese: Pedro V Portuguese pronunciation: 16 September 1837 – 11 November 1861), nicknamed "the Hopeful" (Portuguese: o Esperançoso), was King of Portugal from 1853 to 1861.

As the eldest son of Queen Maria II and King Ferdinand II, Peter was a member of the House of Braganza. As heir apparent to the throne he was styled Prince Royal (Portuguese: Príncipe Real), and was also the 19th Duke of Braganza (Duque de Bragança).

Peter was a conscientious and hard-working monarch who, under the guidance of his father, sought radical modernisation of the Portuguese state and infrastructure. Under his reign, roads, telegraphs, and railways were constructed and improvements in public health advanced. His popularity increased when, during the cholera outbreak of 1853–1856, he visited hospitals handing out gifts and comforting the sick.

Pedro V, along with his brothers Fernando and João and other royal family members, succumbed to typhoid fever or cholera in 1861.

Portuguese stamps depicting Pedro V

August 15th in stamps Napoleon, Marquis de Lafayette, Ivan Meštrović

Here are some events that happened on August 15th. It could be an event or a person that died or was born on that day

1769 Born: Napoleon, French general and emperor (d. 1821)

Napoleon Bonaparte (15 August 1769 – 5 May 1821), born Napoleone di Buonaparte, was a French statesman and military leader who became famous as an artillery commander during the French Revolution. He led many successful campaigns during the French Revolutionary Wars and was Emperor of the French as Napoleon I from 1804 until 1814 and again briefly in 1815 during the Hundred Days. Napoleon dominated European and global affairs for more than a decade while leading France against a series of coalitions during the Napoleonic Wars. He won many of these wars and a vast majority of his battles, building a large empire that ruled over much of continental Europe before its final collapse in 1815. He is considered one of the greatest commanders in history, and his wars and campaigns are studied at military schools worldwide. Napoleon's political and cultural legacy has made him one of the most celebrated and controversial leaders in human history.  

Napoleon's influence on the modern world brought liberal reforms to the numerous territories that he conquered and controlled, such as the Low Countries, Switzerland, and large parts of modern Italy and Germany. He implemented fundamental liberal policies in France and throughout Western Europe. His Napoleonic Code has influenced the legal systems of more than 70 nations around the world. British historian Andrew Roberts states: "The ideas that underpin our modern world—meritocracy, equality before the law, property rights, religious toleration, modern secular education, sound finances, and so on—were championed, consolidated, codified and geographically extended by Napoleon. To them he added a rational and efficient local administration, an end to rural banditry, the encouragement of science and the arts, the abolition of feudalism and the greatest codification of laws since the fall of the Roman Empire". 

Stamps from France and Monaco commemorating Napoleon

1824 – The Marquis de Lafayette, the last surviving French general of the American Revolutionary War, arrives in New York and begins a tour of 24 states.

Marie-Joseph Paul Yves Roch Gilbert du Motier, Marquis de Lafayette (6 September 1757 – 20 May 1834), known in the United States simply as Lafayette, was a French aristocrat and military officer who fought in the American Revolutionary War, commanding American troops in several battles, including the Siege of Yorktown. After returning to France, he was a key figure in the French Revolution of 1789 and the July Revolution of 1830.

Lafayette was born into a wealthy land-owning family in Chavaniac in the province of Auvergne in south central France. He followed the family's martial tradition and was commissioned an officer at age 13. He became convinced that the American revolutionary cause was noble, and he traveled to the New World seeking glory in it. He was made a major general at age 19, but he was initially not given American troops to command. He was wounded during the Battle of Brandywine but still managed to organize an orderly retreat, and he served with distinction in the Battle of Rhode Island. In the middle of the war, he sailed for home to lobby for an increase in French support. He returned to America in 1780 and was given senior positions in the Continental Army. In 1781, troops under his command in Virginia blocked forces led by Cornwallis until other American and French forces could position themselves for the decisive Siege of Yorktown.

Lafayette returned to France and was appointed to the Assembly of Notables in 1787, convened in response to the fiscal crisis. He was elected a member of the Estates General of 1789, where representatives met from the three traditional orders of French society: the clergy, the nobility, and the commoners. After forming the National Constituent Assembly, he helped to write the Declaration of the Rights of Man and of the Citizen with Thomas Jefferson's assistance. This document was inspired by the United States Declaration of Independence and invoked natural law to establish basic principles of the democratic nation-state. He also advocated the end of slavery, in keeping with the philosophy of natural liberty. After the storming of the Bastille, he was appointed commander-in-chief of France's National Guard and tried to steer a middle course through the years of revolution. In August 1792, radical factions ordered his arrest, and he fled into the Austrian Netherlands. He was captured by Austrian troops and spent more than five years in prison.

Lafayette returned to France after Napoleon Bonaparte secured his release in 1797, though he refused to participate in Napoleon's government. After the Bourbon Restoration of 1814, he became a liberal member of the Chamber of Deputies, a position which he held for most of the remainder of his life. In 1824, President James Monroe invited him to the United States as the nation's guest, and he visited all 24 states in the union and met a rapturous reception. During France's July Revolution of 1830, he declined an offer to become the French dictator. Instead, he supported Louis-Philippe as king, but turned against him when the monarch became autocratic. He died on 20 May 1834 and is buried in Picpus Cemetery in Paris, under soil from Bunker Hill. He is sometimes known as "The Hero of the Two Worlds" for his accomplishments in the service of both France and the United States.

US stamp and First Day Cover depicting Lafayette

1883 Born: Ivan Meštrović, Croatian sculptor and architect (d. 1962)

Ivan Meštrović (15 August 1883 – 16 January 1962) was a renowned Yugoslavian and Croatian sculptor, architect and writer of the 20th century.

He was the most prominent sculptor of Croatian modern sculpture and a leading personality of artistic life in Zagreb. He studied at the Pavle Bilinić's Stone Workshop in Split and at the Academy of Fine Arts Vienna, where he was formed under the influence of the Secession. He traveled throughout Europe and studied the works of ancient and Renaissance masters, especially Michelangelo, and French sculptors A. Rodin, A. Bourdelle and A. Maillola. He was the initiator of the national-romantic group Medulić (he advocated the creation of art of national features inspired by the heroic folk songs). During the First World War, he lived in emigration. After the war, he returned to Croatia and began a long and fruitful period of sculpture and pedagogical work. In 1942 he emigrated to Italy, in 1943 to Switzerland and in 1947 to the United States. He was a professor of sculpture at the Syracuse University and from 1955 at the University of Notre Dame in South Bend, Indiana.

Most of his early works of symbolic themes were formed in the spirit of the Secession, some of which, like the Well of Life, show impressionist restless surfaces created under the influence of Rodin's naturalism, and the second, reviving national myth, become stylized monumental plastics (Kosovo cycle, 1908-1910). Before the First World War, he left pathetic epic stylization, expressing increasingly emotional states, as evidenced by the wooden reliefs of biblical themes made in a combination of Archaic, Gothic, Secessionist and Expressionist styles. During the 1920s and 1930s, the classical component prevailed in his works. In this period, he created a number of public monuments of strong plastic expression, pronounced and legible shapes (Grgur Ninski and Marko Marulić in Split, Andrija Medulić, Andrija Kačić-Miošić and Josip Juraj Strossmayer in Zagreb, The Bowman and The Spearman in Chicago). Portraits take a special place in his opus.

Meštrović achieved works of strong plastic value in the construction-sculptural monuments and projects, mostly with central layout (the Mausoleum of the Račić family in Cavtat, the Mausoleum of the Meštrović family in Otavice, the Meštrović Pavilion in Zagreb, Monument to the Unknown Hero in Belgrade). He also designed a memorial church of King Zvonimir in Biskupija near Knin inspired by old Croatian churches, a representative family palace, today the Ivan Meštrović Gallery, and reconstructed renaissance fortified mansion Crikvine-Kaštilac in Split.

August 14th in stamps Hans Christian Ørsted, Cologne Cathedral, Paul Sabatier

Here are some events that happened on August 14th. It could be an event or a person that died or was born on that day

1777 Born: Hans Christian Ørsted, Danish physicist and chemist (d. 1851)

Hans Christian Ørsted (often rendered Oersted in English; 14 August 1777 – 9 March 1851) was a Danish physicist and chemist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism. Oersted's law and the oersted (Oe) are named after him.

On 21 April 1820, Ørsted published his discovery that a compass needle was deflected from magnetic north by a nearby electric current, confirming a direct relationship between electricity and magnetism. The often reported story that Ørsted made this discovery incidentally during a lecture is a myth. He had, in fact, been looking for a connection between electricity and magnetism since 1818, but was quite confused by the results he was obtaining. 

His initial interpretation was that magnetic effects radiate from all sides of a wire carrying an electric current, as do light and heat. Three months later, he began more intensive investigations and soon thereafter published his findings, showing that an electric current produces a circular magnetic field as it flows through a wire.  For his discovery, the Royal Society of London awarded Ørsted the Copley Medal in 1820 and the French Academy granted him 3,000 francs.

Ørsted's findings stirred much research into electrodynamics throughout the scientific community, influencing French physicist André-Marie Ampère's developments of a single mathematical formula to represent the magnetic forces between current-carrying conductors. Ørsted's work also represented a major step toward a unified concept of energy.

A leader of the Danish Golden Age, Ørsted was a close friend of Hans Christian Andersen and the brother of politician and jurist Anders Sandøe Ørsted, who served as Prime Minister of Denmark from 1853 to 1854.

Danish stamp issued to commemorate Hans Christian Ørsted 

1880 – Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.

Cologne Cathedral (German: Kölner Dom, officially Hohe Domkirche Sankt Petrus, English: Cathedral Church of Saint Peter) is a Catholic cathedral in Cologne, North Rhine-Westphalia, Germany. It is the seat of the Archbishop of Cologne and of the administration of the Archdiocese of Cologne. It is a renowned monument of German Catholicism and Gothic architecture and was declared a World Heritage Site in 1996. It is Germany's most visited landmark, attracting an average of 20,000 people a day. At 157 m (515 ft), the cathedral is currently the tallest twin-spired church in the world, the second tallest church in Europe after Ulm Minster, and the third tallest church in the world. It is the largest Gothic church in Northern Europe and has the second-tallest spires. The towers for its two huge spires give the cathedral the largest façade of any church in the world. The choir has the largest height to width ratio, 3.6:1, of any medieval church.

Construction of Cologne Cathedral began in 1248 but was halted in the years around 1560, unfinished. Work did not restart until the 1840s, and the edifice was completed to its original Medieval plan in 1880. 

Cologne's medieval builders had planned a grand structure to house the reliquary of the Three Kings and fit its role as a place of worship for the Holy Roman Emperor. Despite having been left incomplete during the medieval period, Cologne Cathedral eventually became unified as "a masterpiece of exceptional intrinsic value" and "a powerful testimony to the strength and persistence of Christian belief in medieval and modern Europe".

German stamps depicting the Cologne Cathedral

1941 Died: Paul Sabatier, French chemist and academic, Nobel Prize laureate (b. 1854)

Prof Paul Sabatier (5 November 1854 – 14 August 1941) was a French chemist, born in Carcassonne. In 1912, Sabatier was awarded the Nobel Prize in Chemistry along with Victor Grignard. Sabatier was honoured for his work improving the hydrogenation of organic species in the presence of metals.

Sabatier is best known for the Sabatier process and his works such as La Catalyse en Chimie Organique (Catalysis in organic chemistry) which was published in 1913. He won the Nobel Prize in Chemistry jointly with fellow Frenchman Victor Grignard in 1912. He is also known for the Sabatier principle of catalysis

French stamp depicting Paul Sabatier 

August 13th in stamps Delacroix, Hitchcock, H. G. Wells, August Bebel

Here are some events that happened on August 13th. It could be an event or a person that died or was born on that day

1863 Died: Eugène Delacroix, French painter and lithographer (b. 1798)

Ferdinand Victor Eugène Delacroix (26 April 1798 – 13 August 1863) was a French Romantic artist regarded from the outset of his career as the leader of the French Romantic school.

As a painter and muralist, Delacroix's use of expressive brushstrokes and his study of the optical effects of colour profoundly shaped the work of the Impressionists, while his passion for the exotic inspired the artists of the Symbolist movement. A fine lithographer, Delacroix illustrated various works of William Shakespeare, the Scottish author Walter Scott and the German author Johann Wolfgang von Goethe.

In contrast to the Neoclassical perfectionism of his chief rival Ingres, Delacroix took for his inspiration the art of Rubens and painters of the Venetian Renaissance, with an attendant emphasis on colour and movement rather than clarity of outline and carefully modelled form. Dramatic and romantic content characterized the central themes of his maturity, and led him not to the classical models of Greek and Roman art, but to travel in North Africa, in search of the exotic. Friend and spiritual heir to Théodore Géricault, Delacroix was also inspired by Lord Byron, with whom he shared a strong identification with the "forces of the sublime", of nature in often violent action.

However, Delacroix was given to neither sentimentality nor bombast, and his Romanticism was that of an individualist. In the words of Baudelaire, "Delacroix was passionately in love with passion, but coldly determined to express passion as clearly as possible." Together with Ingres, Delacroix is considered one of the last old Masters of painting, and one of the few who was ever photographed.

Stamps from France depicting Delacroix's paintings or stamps depicting liberty based on Delacroix's painting Liberty Leading the People

1899 Born: Alfred Hitchcock, English-American director and producer (d. 1980)

Sir Alfred Joseph Hitchcock (13 August 1899 – 29 April 1980) was an English film director and producer. He is one of the most influential and extensively studied filmmakers in the history of cinema. Known as the "Master of Suspense", he directed over 50 feature films in a career spanning six decades, becoming as well known as any of his actors thanks to his many interviews, his cameo roles in most of his films, and his hosting and producing of the television anthology Alfred Hitchcock Presents (1955–1965). His films garnered a total of 46 Oscar nominations and 6 wins.

Born in Leytonstone, London, Hitchcock entered the film industry in 1919 as a title card designer after training as a technical clerk and copy writer for a telegraph-cable company. He made his directorial debut with the British-German silent film The Pleasure Garden (1925). His first successful film, The Lodger: A Story of the London Fog (1927), helped to shape the thriller genre, while his 1929 film, Blackmail, was the first British "talkie". Two of his 1930s thrillers, The 39 Steps (1935) and The Lady Vanishes (1938), are ranked among the greatest British films of the 20th century.

By 1939, Hitchcock was a filmmaker of international importance, and film producer David O. Selznick persuaded him to move to Hollywood. A string of successful films followed, including Rebecca (1940), Foreign Correspondent (1940), Suspicion (1941), Shadow of a Doubt (1943), and Notorious (1946). Rebecca won the Academy Award for Best Picture, although Hitchcock himself was only nominated as Best Director; he was also nominated for Lifeboat (1944) and Spellbound (1945), although he never won the Best Director Academy Award.

The "Hitchcockian" style includes the use of camera movement to mimic a person's gaze, thereby turning viewers into voyeurs, and framing shots to maximise anxiety and fear. The film critic Robin Wood wrote that the meaning of a Hitchcock film "is there in the method, in the progression from shot to shot. A Hitchcock film is an organism, with the whole implied in every detail and every detail related to the whole."

After a brief lull of commercial success in the late 1940s, Hitchcock returned to form with Strangers on a Train (1951) and Dial M For Murder (1954). By 1960 Hitchcock had directed four films often ranked among the greatest of all time: Rear Window (1954), Vertigo (1958), North by Northwest (1959), and Psycho (1960), the first and last of these garnering him Best Director nominations. In 2012, Vertigo replaced Orson Welles's Citizen Kane (1941) as the British Film Institute's greatest film ever made based on its world-wide poll of hundreds of film critics. By 2018 eight of his films had been selected for preservation in the United States National Film Registry, including his personal favourite, Shadow of a Doubt (1943). He received the BAFTA Fellowship in 1971, the AFI Life Achievement Award in 1979 and was knighted in December that year, four months before he died.

US sheet depicting Hitchcock 

1913 Died: August Bebel, German theorist and politician (b. 1840)

Ferdinand August Bebel (22 February 1840 – 13 August 1913) was a German socialist politician, writer, and orator. He is best remembered as one of the founders of the Social Democratic Workers' Party of Germany (SDAP) in 1869, which in 1875 merged with the General German Workers' Association into the Socialist Workers' Party of Germany (SAPD). During the repression under the terms of the Anti-Socialist Laws, Bebel became the leading figure of the social democratic movement in Germany and from 1892 until his death served as chairman of the Social Democratic Party of Germany.

Stamps from Germany and East Germany depicting Heinrich Hertz

1946 Died: H. G. Wells, English novelist, historian, and critic (b. 1866)

Herbert George Wells (21 September 1866 – 13 August 1946) was an English writer. Prolific in many genres, he wrote dozens of novels, short stories, and works of social commentary, history, satire, biography and autobiography. His work also included two books on recreational war games. Wells is now best remembered for his science fiction novels and is often called the "father of science fiction", along with Jules Verne and the publisher Hugo Gernsback.

During his own lifetime, however, he was most prominent as a forward-looking, even prophetic social critic who devoted his literary talents to the development of a progressive vision on a global scale. A futurist, he wrote a number of utopian works and foresaw the advent of aircraft, tanks, space travel, nuclear weapons, satellite television and something resembling the World Wide Web. His science fiction imagined time travel, alien invasion, invisibility, and biological engineering. Brian Aldiss referred to Wells as the "Shakespeare of science fiction". Wells rendered his works convincing by instilling commonplace detail alongside a single extraordinary assumption – dubbed “Wells's law” – leading Joseph Conrad to hail him in 1898 as "O Realist of the Fantastic!". His most notable science fiction works include The Time Machine (1895), The Island of Doctor Moreau (1896), The Invisible Man (1897), The War of the Worlds (1898) and the military science fiction The War in the Air (1907). Wells was nominated for the Nobel Prize in Literature four times. 

Wells's earliest specialized training was in biology, and his thinking on ethical matters took place in a specifically and fundamentally Darwinian context. He was also from an early date an outspoken socialist, often (but not always, as at the beginning of the First World War) sympathizing with pacifist views. His later works became increasingly political and didactic, and he wrote little science fiction, while he sometimes indicated on official documents that his profession was that of journalist. Novels such as Kipps and The History of Mr Polly, which describe lower-middle-class life, led to the suggestion that he was a worthy successor to Charles Dickens, but Wells described a range of social strata and even attempted, in Tono-Bungay (1909), a diagnosis of English society as a whole. Wells was a diabetic and co-founded the charity The Diabetic Association (known today as Diabetes UK) in 1934.

Set of stamps issued by Great Britain depicting H. G. Wells works

August 12th in stamps Schrödinger, Thomas Mann, George Stephenson

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1848 Died: George Stephenson, English engineer and academic (b. 1781)

George Stephenson (9 June 1781 – 12 August 1848) was a British civil engineer and mechanical engineer. Renowned as the "Father of Railways", Stephenson was considered by the Victorians a great example of diligent application and thirst for improvement. Self-help advocate Samuel Smiles particularly praised his achievements. His chosen rail gauge, sometimes called 'Stephenson gauge', was the basis for the 4 feet 8 1⁄2 inches (1.435 m) standard gauge used by most of the world's railways.

Pioneered by Stephenson, rail transport was one of the most important technological inventions of the 19th century and a key component of the Industrial Revolution. Built by George and his son Robert's company Robert Stephenson and Company, the Locomotion No. 1 is the first steam locomotive to carry passengers on a public rail line, the Stockton and Darlington Railway in 1825. George also built the first public inter-city railway line in the world to use locomotives, the Liverpool and Manchester Railway, which opened in 1830.

Stamps from Great Britain and Hungary commemorating George Stephenson

1887 Born: Erwin Schrödinger, Austrian physicist and academic, Nobel Prize laureate (d. 1961)

Erwin Rudolf Josef Alexander Schrödinger (12 August 1887 – 4 January 1961), sometimes written as Erwin Schrodinger or Erwin Schroedinger, was a Nobel Prize-winning Austrian physicist who developed a number of fundamental results in the field of quantum theory: the Schrödinger equation provides a way to calculate the wave function of a system and how it changes dynamically in time.

In addition, he was the author of many works in various fields of physics: statistical mechanics and thermodynamics, physics of dielectrics, colour theory, electrodynamics, general relativity, and cosmology, and he made several attempts to construct a unified field theory. In his book What Is Life? Schrödinger addressed the problems of genetics, looking at the phenomenon of life from the point of view of physics. He paid great attention to the philosophical aspects of science, ancient and oriental philosophical concepts, ethics, and religion.He also wrote on philosophy and theoretical biology. He is also known for his "Schrödinger's cat" thought-experiment

Austrian stamp depicting Erwin Schrödinger

1955 Died: Thomas Mann, German author and critic, Nobel Prize laureate (b. 1875)

Paul Thomas Mann (6 June 1875 – 12 August 1955) was a German novelist, short story writer, social critic, philanthropist, essayist, and the 1929 Nobel Prize in Literature laureate. His highly symbolic and ironic epic novels and novellas are noted for their insight into the psychology of the artist and the intellectual. His analysis and critique of the European and German soul used modernized versions of German and Biblical stories, as well as the ideas of Johann Wolfgang von Goethe, Friedrich Nietzsche and Arthur Schopenhauer.

Mann was a member of the Hanseatic Mann family and portrayed his family and class in his first novel, Buddenbrooks. His older brother was the radical writer Heinrich Mann and three of Mann's six children, Erika Mann, Klaus Mann and Golo Mann, also became significant German writers. When Adolf Hitler came to power in 1933, Mann fled to Switzerland. When World War II broke out in 1939, he moved to the United States, then returned to Switzerland in 1952. Mann is one of the best-known exponents of the so-called Exilliteratur, German literature written in exile by those who opposed the Hitler regime.

Mann's work influenced many later authors, including Heinrich Böll, Joseph Heller, and Yukio Mishima.

East and West German stamps depicting Thomas Mann

August 11th in stamps Babe Ruth, Pedro Nunes,Andrew Carnegie

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1578 Died: Pedro Nunes, Portuguese mathematician and academic (b. 1502)

Pedro Nunes (1502 – 11 August 1578) was a Portuguese mathematician, cosmographer, and professor, from a New Christian (of Jewish origin) family. 

Considered one of the greatest mathematicians of his time  Nunes is best known for his contributions to the nautical sciences (navigation and cartography), which he approached, for the first time, in a mathematical way. He was the first to propose the idea of a loxodrome, and was the inventor of several measuring devices, including the nonius (from which Vernier scale was derived), named after his Latin surname.

Pedro Nunes lived in a transition period, during which science was changing from valuing theoretical knowledge (which defined the main role of a scientist/mathematician as commenting on previous authors), to providing experimental data, both as a source of information and as a method of confirming theories. Nunes was, above all, one of the last great commentators, as is shown by his first published work “Tratado da Esfera”, enriched with comments and additions that denote a profound knowledge of the difficult cosmography of the period. He also acknowledged the value of experimentation.

In his Tratado da sphera he argued for a common and universal diffusion of knowledge. Accordingly, he not only published works in Latin, at that time science's lingua franca, aiming for an audience of European scholars, but also in Portuguese, and Spanish (Livro de Algebra).

Navigation

Much of Nunes' work related to navigation. He was the first to understand why a ship maintaining a steady course would not travel along a great circle, the shortest path between two points on Earth, but would instead follow a spiral course, called a loxodrome. The later invention of logarithms allowed Leibniz to establish algebraic equations for the loxodrome. These lines —also called rhumb lines— maintain a fixed angle with the meridians. In other words, loxodromic curves are directly related to the construction of the Nunes connection —also called navigator connection. 

In his Treaty defending the sea chart, Nunes argued that a nautical chart should have its parallels and meridians shown as straight lines. Yet he was unsure how to solve the problems that this caused: a situation that lasted until Mercator developed the projection bearing his name. The Mercator Projection is the system which is still used.

Geometry

Nunes also solved the problem of finding the day with the shortest twilight duration, for any given position, and its duration. This problem per se is not greatly important, yet it shows the geometric genius of Nunes as it was a problem which was independently tackled by Johann and Jakob Bernoulli more than a century later with less success. They could find a solution to the problem of the shortest day, but failed to determine its duration, possibly because they got lost in the details of differential calculus which, at that time, had only recently been developed. The achievement also shows that Nunes was a pioneer in solving maxima and minima problems, which became a common requirement only in the next century using differential calculus. 

Stamps and cover issued by Portugal to commemorate Pedro Nunes

1911 Died: Andrew Carnegie, Scottish-American businessman and philanthropist (b. 1835)

Andrew Carnegie (November 25, 1835 – August 11, 1919) was a Scottish-American industrialist and philanthropist. Carnegie led the expansion of the American steel industry in the late 19th century and became one of the richest Americans in history. He became a leading philanthropist in the United States and in the British Empire. During the last 18 years of his life, he gave away $350 million (conservatively $65 billion in 2019 dollars, based on percentage of GDP) to charities, foundations, and universities – almost 90 percent of his fortune. His 1889 article proclaiming "The Gospel of Wealth" called on the rich to use their wealth to improve society, and stimulated a wave of philanthropy.

Carnegie was born in Dunfermline, Scotland, and emigrated to the United States with his parents in 1848 at age 12. Carnegie started work as a telegrapher, and by the 1860s had investments in railroads, railroad sleeping cars, bridges, and oil derricks. He accumulated further wealth as a bond salesman, raising money for American enterprise in Europe. He built Pittsburgh's Carnegie Steel Company, which he sold to J. P. Morgan in 1901 for $303,450,000. It became the U.S. Steel Corporation. After selling Carnegie Steel, he surpassed John D. Rockefeller as the richest American for the next several years.

Carnegie devoted the remainder of his life to large-scale philanthropy, with special emphasis on local libraries, world peace, education, and scientific research. With the fortune he made from business, he built Carnegie Hall in New York, NY, and the Peace Palace and founded the Carnegie Corporation of New York, Carnegie Endowment for International Peace, Carnegie Institution for Science, Carnegie Trust for the Universities of Scotland, Carnegie Hero Fund, Carnegie Mellon University, and the Carnegie Museums of Pittsburgh, among others.

US stamp depicting Carnegie

1929 – Babe Ruth becomes the first baseball player to hit 500 home runs in his career with a home run at League Park in Cleveland, Ohio.

George Herman "Babe" Ruth Jr. (February 6, 1895 – August 16, 1948) was an American professional baseball player whose career in Major League Baseball (MLB) spanned 22 seasons, from 1914 through 1935. Nicknamed "The Bambino" and "The Sultan of Swat", he began his MLB career as a star left-handed pitcher for the Boston Red Sox, but achieved his greatest fame as a slugging outfielder for the New York Yankees. Ruth established many MLB batting (and some pitching) records, including career home runs (714), runs batted in (RBIs) (2,213), bases on balls (2,062), slugging percentage (.690), and on-base plus slugging (OPS) (1.164); the last two still stand as of 2019. Ruth is regarded as one of the greatest sports heroes in American culture and is considered by many to be the greatest baseball player of all time. In 1936, Ruth was elected into the Baseball Hall of Fame as one of its "first five" inaugural members.

At age seven, Ruth was sent to St. Mary's Industrial School for Boys, a reformatory where he was mentored by Brother Matthias Boutlier of the Xaverian Brothers, the school's disciplinarian and a capable baseball player. In 1914, Ruth was signed to play minor-league baseball for the Baltimore Orioles but was soon sold to the Red Sox. By 1916, he had built a reputation as an outstanding pitcher who sometimes hit long home runs, a feat unusual for any player in the pre-1920 dead-ball era. Although Ruth twice won 23 games in a season as a pitcher and was a member of three World Series championship teams with the Red Sox, he wanted to play every day and was allowed to convert to an outfielder. With regular playing time, he broke the MLB single-season home run record in 1919.

After that season, Red Sox owner Harry Frazee sold Ruth to the Yankees amid controversy. The trade fueled Boston's subsequent 86-year championship drought and popularized the "Curse of the Bambino" superstition. In his 15 years with the Yankees, Ruth helped the team win seven American League (AL) pennants and four World Series championships. His big swing led to escalating home run totals that not only drew fans to the ballpark and boosted the sport's popularity but also helped usher in baseball's live-ball era, which evolved from a low-scoring game of strategy to a sport where the home run was a major factor. As part of the Yankees' vaunted "Murderers' Row" lineup of 1927, Ruth hit 60 home runs, which extended his MLB single-season record by a single home run. Ruth's last season with the Yankees was 1934; he retired from the game the following year, after a short stint with the Boston Braves. During his career, Ruth led the AL in home runs during a season 12 times.

During Ruth's career, he was the target of intense press and public attention for his baseball exploits and off-field penchants for drinking and womanizing. After his retirement as a player, he was denied the opportunity to manage a major league club, most likely due to poor behavior during parts of his playing career. In his final years, Ruth made many public appearances, especially in support of American efforts in World War II. In 1946, he became ill with nasopharyngeal cancer and died from the disease two years later. Ruth remains a part of American culture, and in 2018 President Donald Trump posthumously awarded him the Presidential Medal of Freedom.

August 10th in stamps Royal Greenwich Observatory, Louvre, Herbert Hoover, Maarten Tromp, Otto Lilienthal

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

1653 Died: Maarten Tromp, Dutch admiral (b. 1598)

Maarten Harpertszoon Tromp (also written as Maerten Tromp; 23 April 1598 – 10 August 1653) was a Dutch army general and admiral in the Dutch navy.

In 1637, Tromp was promoted from captain to Lieutenant-Admiral of Holland and West Frisia in 1637, following the dismissal of Lieutenant-Admiral Philips van Dorp, Vice-Admiral Jasper Liefhebber, and other flag officers due to incompetence. Although formally ranking under the Admiral-General Frederick Henry of Orange, he was the de facto supreme commander of the Dutch fleet, as the stadtholders never fought at sea. Tromp was mostly occupied with blockading the privateer port of Dunkirk. Both Tromp and Witte de With, who was named as Vice-Admiral, had been born in Den Briel and served as flag captains of Piet Heyn.

In 1639, during the Dutch struggle for independence from Spain, Tromp defeated a large Spanish fleet bound for Flanders at the Battle of the Downs, marking the end of Spanish naval power. In a preliminary battle, the Action of 18 September 1639, Tromp was the first fleet commander known for the deliberate use of line of battle tactics. His flagship in this period was the Aemilia.

In 1643 the subject was the center of a parliamentary investigation of naval intrigue with the Queen of England and the Prince of Orange who had allegedly instructed the Vice-Admiral to allow passage of two frigates purchased by English royalists in Dunkirk.

In the First Anglo-Dutch War of 1652 to 1653, Tromp commanded the Dutch fleet in the battles of Dover, Dungeness, Portland, the Gabbard and Scheveningen. In the latter, he was killed by a sharpshooter in the rigging of William Penn's ship. His acting flag captain, Egbert Bartholomeusz Kortenaer, on the Brederode kept up fleet morale by not lowering Tromp's standard, pretending Tromp was still alive.

Tromp's death was a severe blow to the Dutch navy but also to the Orangists, who sought the defeat of the Commonwealth of England and the restoration of the Stuart monarchy. Republican influence strengthened after Scheveningen, which led to peace negotiations with the Commonwealth, culminating in the Treaty of Westminster.

During his career, his main rival was Vice-Admiral Witte de With, who also served the Admiralty of Rotterdam (de Maze) from 1637. De With temporarily replaced him as supreme commander for the Battle of Kentish Knock. Tromp's successor was Lieutenant-Admiral Jacob van Wassenaer Obdam.

Dutch stamps depicting Maarten Tromp

1675 – The foundation stone of the Royal Greenwich Observatory in London, England is laid.

The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, moved from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park, overlooking the River Thames. It played a major role in the history of astronomy and navigation, and because the prime meridian passes through it, it gave its name to Greenwich Mean Time. The ROG has the IAU observatory code of 000, the first in the list. ROG, the National Maritime Museum, the Queen's House and Cutty Sark are collectively designated Royal Museums Greenwich.

The observatory was commissioned in 1675 by King Charles II, with the foundation stone being laid on 10 August. The site was chosen by Sir Christopher Wren. At that time the king also created the position of Astronomer Royal, to serve as the director of the observatory and to "apply himself with the most exact care and diligence to the rectifying of the tables of the motions of the heavens, and the places of the fixed stars, so as to find out the so much desired longitude of places for the perfecting of the art of navigation." He appointed John Flamsteed as the first Astronomer Royal. The building was completed in the summer of 1676. The building was often called "Flamsteed House", in reference to its first occupant.

The scientific work of the observatory was relocated elsewhere in stages in the first half of the 20th century, and the Greenwich site is now maintained almost exclusively as a museum, although the AMAT telescope became operational for astronomical research in 2018.

Stamps from Great Britain commemorating the Royal Greenwich Observatory and the prime meridian

1793 – The Musée du Louvre is officially opened in Paris, France.

The Louvre, is the world's largest art museum and a historic monument in Paris, France. A central landmark of the city, it is located on the Right Bank of the Seine in the city's 1st arrondissement (district or ward). Approximately 38,000 objects from prehistory to the 21st century are exhibited over an area of 72,735 square meters (782,910 square feet). In 2019, the Louvre received 9.6 million visitors, making it the most visited museum in the world. 

The museum is housed in the Louvre Palace, originally built as the Louvre castle in the late 12th to 13th century under Philip II. Remnants of the fortress are visible in the basement of the museum. Due to urban expansion, the fortress eventually lost its defensive function, and in 1546 Francis I converted it into the primary residence of the French Kings. The building was extended many times to form the present Louvre Palace. In 1682, Louis XIV chose the Palace of Versailles for his household, leaving the Louvre primarily as a place to display the royal collection, including, from 1692, a collection of ancient Greek and Roman sculpture. In 1692, the building was occupied by the Académie des Inscriptions et Belles-Lettres and the Académie Royale de Peinture et de Sculpture, which in 1699 held the first of a series of salons. The Académie remained at the Louvre for 100 years. During the French Revolution, the National Assembly decreed that the Louvre should be used as a museum to display the nation's masterpieces.

The museum opened on 10 August 1793 with an exhibition of 537 paintings, the majority of the works being royal and confiscated church property. Because of structural problems with the building, the museum was closed in 1796 until 1801. The collection was increased under Napoleon and the museum was renamed Musée Napoléon, but after Napoleon's abdication, many works seized by his armies were returned to their original owners. The collection was further increased during the reigns of Louis XVIII and Charles X, and during the Second French Empire the museum gained 20,000 pieces. Holdings have grown steadily through donations and bequests since the Third Republic. The collection is divided among eight curatorial departments: Egyptian Antiquities; Near Eastern Antiquities; Greek, Etruscan and Roman Antiquities; Islamic Art; Sculpture; Decorative Arts; Paintings; Prints and Drawings.

French stamps commemorating the Louvre

1874 Born: Herbert Hoover, American engineer and politician, 31st President of the United States (d. 1964)

Herbert Clark Hoover (August 10, 1874 – October 20, 1964) was an American engineer, businessman, and politician who served as the 31st president of the United States from 1929 to 1933. A member of the Republican Party, he held office during the onset of the Great Depression. Before serving as president, Hoover led the Commission for Relief in Belgium, served as the director of the U.S. Food Administration, and served as the 3rd U.S. Secretary of Commerce.

Hoover was born to a Quaker family in West Branch, Iowa. He took a position with a London-based mining company after graduating from Stanford University in 1895. After the outbreak of World War I, he became the head of the Commission for Relief in Belgium, an international relief organization that provided food to occupied Belgium. When the U.S. entered the war, President Woodrow Wilson appointed Hoover to lead the Food Administration, and Hoover became known as the country's "food czar". After the war, Hoover led the American Relief Administration, which provided food to the inhabitants of Central Europe and Eastern Europe. Hoover's war-time service made him a favorite of many progressives, and he unsuccessfully sought the Republican nomination in the 1920 presidential election.

After the 1920 election, newly elected Republican President Warren G. Harding appointed Hoover as Secretary of Commerce; Hoover continued to serve under President Calvin Coolidge after Harding died in 1923. Hoover was an unusually active and visible cabinet member, becoming known as "Secretary of Commerce and Under-Secretary of all other departments". He was influential in the development of radio and air travel and led the federal response to the Great Mississippi Flood of 1927. Hoover won the Republican nomination in the 1928 presidential election, and decisively defeated the Democratic candidate, Al Smith. The stock market crashed shortly after Hoover took office, and the Great Depression became the central issue of his presidency. Hoover pursued a variety of policies in an attempt to lift the economy, but opposed directly involving the federal government in relief efforts.

In the midst of the economic crisis, Hoover was decisively defeated by Democratic nominee Franklin D. Roosevelt in the 1932 presidential election. After leaving office, Hoover enjoyed one of the longest retirements of any former president, and he authored numerous works in subsequent decades. Hoover became increasingly conservative in this time, and he strongly criticized Roosevelt's foreign policy and New Deal domestic agenda. In the 1940s and 1950s, Hoover's public reputation was slightly rehabilitated after serving in various assignments for Presidents Harry S. Truman and Dwight D. Eisenhower, including as chairman of the Hoover Commission. Though he managed somewhat to rehabilitate his legacy, Hoover is still widely regarded as an inadequate U.S. president, and most polls of historians and political scientists rank him in the bottom third overall.

US stamps and first day cover depicting  Herbert Hoover

1896 Died: Otto Lilienthal, German pilot and engineer (b. 1848 )

Karl Wilhelm Otto Lilienthal (23 May 1848 – 10 August 1896) was a German pioneer of aviation who became known as the "flying man". He was the first person to make well-documented, repeated, successful flights with gliders. Newspapers and magazines published photographs of Lilienthal gliding, favorably influencing public and scientific opinion about the possibility of flying machines becoming practical. On 9 August 1896, his glider stalled and he was unable to regain control. Falling from about 15 m (50 ft), he broke his neck and died the next day.

Lilienthal's greatest contribution was in the development of heavier-than-air flight. He made his flights from an artificial hill he built near Berlin and from natural hills, especially in the Rhinow region.

The filing of a U.S. Patent in 1894 by Lilienthal directed pilots to grip the "bar" for carrying and flying the hang glider. The A-frame of Percy Pilcher and Lilienthal echoes in today's control frame for hang gliders and ultralight aircraft. Working in conjunction with his brother Gustav, Lilienthal made over 2,000 flights in gliders of his design starting in 1891 with his first glider version, the Derwitzer, until his death in a gliding crash in 1896. His total flying time was five hours.

At the beginning, in 1891, Lilienthal succeeded with jumps and flights covering a distance of about 25 meters (82 ft). He could use the updraft of a 10 m/s wind against a hill to remain stationary with respect to the ground, shouting to a photographer on the ground to maneuver into the best position for a photo. In 1893, in the Rhinow Hills, he was able to achieve flight distances as long as 250 meters (820 ft). This record remained unbeaten for him or anyone else at the time of his death.

Lilienthal did research in accurately describing the flight of birds, especially storks, and used polar diagrams for describing the aerodynamics of their wings. He made many experiments in an attempt to gather reliable aeronautical data.

German stamps depicting Otto Lilienthal