August 22nd in stamps New South Wales, Denis Papin, Milan I of Serbia

Here are some events that happened on August 22nd. It could be an event or a person that died or was born on that day

1647 Born: Denis Papin, French physicist and mathematician, developed pressure cooking (d. 1712)

Denis Papin (22 August 1647 – 26 August 1713) was a French physicist, mathematician and inventor, best known for his pioneering invention of the steam digester, the forerunner of the pressure cooker and of the steam engine. 

Born in Chitenay (Loir-et-Cher, Centre-Val de Loire Région), Papin attended a Jesuit school there, and from 1661 attended University at Angers, from which he graduated with a medical degree in 1669. In 1673, while working with Christiaan Huygens and Gottfried Leibniz in Paris, he became interested in using a vacuum to generate motive power.

Papin first visited London in 1675, and worked with Robert Boyle from 1676 to 1679, publishing an account of his work in Continuation of New Experiments (1680). During this period, Papin invented the steam digester, a type of pressure cooker with a safety valve. He first addressed the Royal Society in 1679 on the subject of his digester, and remained mostly in London until about 1687, when he left to take up an academic post in Germany.

France stamp and First Day Cover issued to commemorate Denis Papin

1770 – James Cook names and lands on Possession Island, and claims the east coast of Australia for Britain as New South Wales.

New South Wales (abbreviated as NSW) is a state on the east coast of Australia. It borders Queensland to the north, Victoria to the south, and South Australia to the west. Its coast borders the Coral and Tasman Seas to the east. The Australian Capital Territory is an enclave within the state. New South Wales' state capital is Sydney, which is also Australia's most populous city. In March 2019, the population of New South Wales was over 8 million,[3] making it Australia's most populous state. Just under two-thirds of the state's population, 5.1 million, live in the Greater Sydney area.[9] Male inhabitants[disputed – discuss] of New South Wales may occasionally be referred to as New South Welshmen; but there is no widely used demonym. 

The Colony of New South Wales was founded as a British penal colony in 1788. It originally comprised more than half of the Australian mainland with its western boundary set at 129th meridian east in 1825. The colony then also included the island territories of New Zealand, Van Diemen's Land, Lord Howe Island, and Norfolk Island. During the 19th century, most of the colony's area was detached to form separate British colonies that eventually became New Zealand and the various states and territories of Australia. However, the Swan River Colony was never administered as part of New South Wales.

Lord Howe Island remains part of New South Wales, while Norfolk Island has become a federal territory, as have the areas now known as the Australian Capital Territory and the Jervis Bay Territory.

Some early stamps issued by New South Wales

1854 Born:  Milan I of Serbia (d. 1901)

Milan Obrenović (22 August 1854 – 11 February 1901) was the ruler of Serbia from 1868 to 1889, first as prince (1868-1882), subsequently as king (1882-1889).

Milan Obrenović was born in 1854 in Mărășești, Moldavia where his family lived in exile ever since the 1842 return of the rival House of Karađorđević to the Serbian throne when they managed to depose Milan's cousin Prince Mihailo Obrenović III.

Milan was the son of Miloš Obrenović (1829–1861) and his Moldavian wife Marija Obrenović (née Elena Maria Catargiu). Milan's paternal grandfather (Miloš's father) was Jevrem Obrenović (1790–1856), brother of Miloš Obrenović I, Prince of Serbia. Milan was therefore Prince Miloš's grandnephew. He had only one sibling — sister Tomanija.

Shortly after Milan's birth, his parents divorced. Several years later on 20 November 1861, at the age of seven, Milan's father Miloš died fighting the Turks near Bucharest as a foreign mercenary in the Romanian Army, meaning that his mother Marija got a legal custody. Marija, however, lived a lavish aristocratic lifestyle, soon becoming Romanian ruler Alexandru Ioan Cuza's mistress and bearing him two sons — Alexandru Al. Ioan Cuza (nicknamed Sașa) and Dimitrie. As a result, she showed little interest in her children from the previous marriage with Miloš. Therefore, an agreement was reached for young Milan to get legally adopted by his cousin Mihailo Obrenović. who in the meantime, following the 1858 expulsion of the Karađorđevićs, had returned to Serbia where he became the ruling prince in 1860.

On 10 June 1868, when Milan was only fourteen years of age, Prince Mihailo Obrenović III was assassinated. As the late prince did not have any male heirs, the question of who was to succeed him on the Serbian throne became a pressing one. In the post-assassination chaos and the resulting power vacuum, influential senior statesman Ilija Garašanin re-emerged in Serbian political life, despite only eight months earlier being removed by the late prince from the post of Prime Minister of Serbia and replaced with Jovan Ristić. While consolidating forces within the state to prevent the conspirators from taking over the power, Garašanin also reportedly contemplated solving the throne issue by starting a third royal dynasty. General political consensus was that the new ruler should be selected by the Visoka narodna skupština (Grand National Council). However, cabinet minister Milivoje Petrović Blaznavac was rapidly increasing his power and influence. He had managed to consolidate his control over the army and stage a coup d'état. So when Blaznavac suggested the young Milan as the successor to Prince Mihailo, Garašanin had no choice but to yield to the more powerful authority.

On 22 August 1872, Milan was declared of age, and he took government into his own hands. He soon demonstrated great intellectual capacity, coupled with a passionate headstrong character. Eugene Schuyler, who observed him about this time, found him to be a very remarkable, singularly intelligent and well-informed young man. The Principality of Serbia was still a de jure part of the Ottoman Empire though in reality it already had long functioned as a semi-independent state whose politics and economy was much more dependent on other Great Powers, particularly Austria-Hungary and Russian Empire, than on its formal ruler, the declining Ottomans. Milan carefully manoeuvred between the Austrian and Russian geopolitical interests in Serbia, with a judicious leaning towards the former.

On 3 January 1889, Milan adopted a new constitution much more liberal than the existing one of 1869. Two months later, on 6 March, thirty-four-year-old Milan suddenly abdicated the throne, handing it over to his twelve-year-old son. No satisfactory reason was assigned for this step. Milan settled in Paris as a private individual.

August 19th in stamps Blaise Pascal, Johann Balthasar Neumann, Orville Wright

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

1662 Died: Blaise Pascal, French mathematician, physicist, and philosopher (b. 1623)

Blaise Pascal (19 June 1623 – 19 August 1662) was a French mathematician, physicist, inventor, writer and Catholic theologian. He was a child prodigy who was educated by his father, a tax collector in Rouen. Pascal's earliest work was in the natural and applied sciences, where he made important contributions to the study of fluids, and clarified the concepts of pressure and vacuum by generalising the work of Evangelista Torricelli. Pascal also wrote in defence of the scientific method.

In 1642, while still a teenager, he started some pioneering work on calculating machines. After three years of effort and 50 prototypes, he built 20 finished machines (called Pascal's calculators and later Pascalines) over the following 10 years, establishing him as one of the first two inventors of the mechanical calculator.

Pascal was an important mathematician, helping create two major new areas of research: he wrote a significant treatise on the subject of projective geometry at the age of 16, and later corresponded with Pierre de Fermat on probability theory, strongly influencing the development of modern economics and social science. Following Galileo Galilei and Torricelli, in 1647, he rebutted Aristotle's followers who insisted that nature abhors a vacuum. Pascal's results caused many disputes before being accepted.

In 1646, he and his sister Jacqueline identified with the religious movement within Catholicism known by its detractors as Jansenism. Following a religious experience in late 1654, he began writing influential works on philosophy and theology. His two most famous works date from this period: the Lettres provinciales and the Pensées, the former set in the conflict between Jansenists and Jesuits. In that year, he also wrote an important treatise on the arithmetical triangle. Between 1658 and 1659, he wrote on the cycloid and its use in calculating the volume of solids.

Throughout his life, Pascal was in frail health, especially after the age of 18; he died just two months after his 39th birthday. 

Stamps from France and Monaco depicting Blaise Pascal

1753 Died: Johann Balthasar Neumann, German engineer and architect, designed Basilica of the Fourteen Holy Helpers (b. 1687)

Johann Balthasar Neumann (27 January 1687 – 19 August 1753), usually known as Balthasar Neumann, was a German architect and military artillery engineer who developed a refined brand of Baroque architecture, fusing Austrian, Bohemian, Italian, and French elements to design some of the most impressive buildings of the period, including the Würzburg Residence and the Basilica of the Fourteen Holy Helpers (called Vierzehnheiligen in German).

The Würzburg Residence is considered one of the most beautiful and well proportioned palaces in Europe and the Basilica of the Fourteen Holy Helpers is considered by some as the crowning work of the period.

German stamps depicting Johann Balthasar Neumann

1871 Born: Orville Wright, American engineer and pilot, co-founded the Wright Company (d. 1948)

The Wright brothers—Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912)—were two American aviation pioneers generally credited with inventing, building, and flying the world's first successful motor-operated airplane. They made the first controlled, sustained flight of a powered, heavier-than-air aircraft with the Wright Flyer on December 17, 1903, 4 mi (6 km) south of Kitty Hawk, North Carolina. In 1904–05, the brothers developed their flying machine to make longer-running and more aerodynamic flights with the Wright Flyer II, followed by the first truly practical fixed-wing aircraft, the Wright Flyer III. The Wright brothers were also the first to invent aircraft controls that made fixed-wing powered flight possible.

The brothers' breakthrough was their creation of a three-axis control system, which enabled the pilot to steer the aircraft effectively and to maintain its equilibrium. This method remains standard on fixed-wing aircraft of all kinds.  From the beginning of their aeronautical work, the Wright brothers focused on developing a reliable method of pilot control as the key to solving "the flying problem". This approach differed significantly from other experimenters of the time who put more emphasis on developing powerful engines. Using a small home-built wind tunnel, the Wrights also collected more accurate data than any before, enabling them to design more efficient wings and propellers.  Their first U.S. patent did not claim invention of a flying machine, but a system of aerodynamic control that manipulated a flying machine's surfaces. 

The brothers gained the mechanical skills essential to their success by working for years in their Dayton, Ohio-based shop with printing presses, bicycles, motors, and other machinery. Their work with bicycles, in particular, influenced their belief that an unstable vehicle such as a flying machine could be controlled and balanced with practice. From 1900 until their first powered flights in late 1903, they conducted extensive glider tests that also developed their skills as pilots. Their shop employee Charlie Taylor became an important part of the team, building their first airplane engine in close collaboration with the brothers.

The Wright brothers' status as inventors of the airplane has been subject to counter-claims by various parties. Much controversy persists over the many competing claims of early aviators. Edward Roach, historian for the Dayton Aviation Heritage National Historical Park, argues that they were excellent self-taught engineers who could run a small company, but they did not have the business skills or temperament to dominate the growing aviation industry.

US stamps depicting the Wright brothers

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

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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

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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 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