September 18th in stamps Leonhard Euler, Oscar II, Royal Opera House in London opens, Léon Foucault

Here are some events that happened on September 18th. It could be an event or a person that died or was born on that day

1783 Died: Leonhard Euler, Swiss mathematician and physicist (b. 1707)

Leonhard Euler (15 April 1707 – 18 September 1783) was a Swiss mathematician, physicist, astronomer, geographer, logician and engineer who made important and influential discoveries in many branches of mathematics, such as infinitesimal calculus and graph theory, while also making pioneering contributions to several branches such as topology and analytic number theory. He also introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function. He is also known for his work in mechanics, fluid dynamics, optics, astronomy and music theory. 

Euler was one of the most eminent mathematicians of the 18th century and is held to be one of the greatest in history. He is also widely considered to be the most prolific, as his collected works fill 92 volumes, more than anyone else in the field. He spent most of his adult life in Saint Petersburg, Russia, and in Berlin, then the capital of Prussia.

Stamps from East Germany and Switzerland depicting Leonhard Euler

1809 – The Royal Opera House in London opens.

The Royal Opera House (ROH) is an opera house and major performing arts venue in Covent Garden, central London. The large building is often referred to as simply "Covent Garden", after a previous use of the site of the opera house's original construction in 1732. It is the home of The Royal Opera, The Royal Ballet, and the Orchestra of the Royal Opera House. Originally called the Theatre Royal, it served primarily as a playhouse for the first hundred years of its history. In 1734, the first ballet was presented. A year later, Handel's first season of operas began. Many of his operas and oratorios were specifically written for Covent Garden and had their premieres there.

The current building is the third theatre on the site following disastrous fires in 1808 and 1856. The façade, foyer, and auditorium date from 1858, but almost every other element of the present complex dates from an extensive reconstruction in the 1990s. The main auditorium seats 2,256 people, making it the third largest in London, and consists of four tiers of boxes and balconies and the amphitheatre gallery. The proscenium is 12.20 m wide and 14.80 m high. The main auditorium is a Grade I listed building.

Stamp from Great Britain depicting the Royal Opera House

1819 Born: Léon Foucault, French physicist and academic (d. 1868)

Jean Bernard Léon Foucault (18 September 1819 – 11 February 1868) was a French physicist best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope.

Foucault died of what was probably a rapidly developing case of multiple sclerosis on 11 February 1868 in Paris and was buried in the Montmartre Cemetery.

The asteroid 5668 Foucault was named for him.[10] His is one of the 72 names inscribed on the Eiffel Tower.

1872 – King Oscar II accedes to the throne of Sweden–Norway.

Oscar II (Oscar Fredrik; 21 January 1829 – 8 December 1907) was the King of Sweden from 1872 until his death, and was also the final King of Norway from the House of Bernadotte until being deposed in 1905.

Oscar II was King during a time when both Sweden and Norway were undergoing a period of industrialization and rapid technological progress. His reign also saw the gradual decline of the Union of Sweden and Norway, which culminated in its dissolution in 1905. He was subsequently succeeded as King of Norway by his grandnephew Prince Carl of Denmark under the regnal name Haakon VII, and as King of Sweden by his eldest son, Gustaf V.

Oscar II is the paternal great-great-grandfather of Carl XVI Gustaf, King of Sweden since 1973. Harald V, King of Norway since 1991, is a great-grandson of Oscar II, through his third son Prince Carl, Duke of Västergötland.

Swedish stamps depicting Oscar II

August 30th in stamps Mary Shelley, Christopher Polhem, Jacobus Henricus van 't Hoff

Here are some events that happened on August 30th. It could be an event or a person that died or was born on that day

1751 Died: Christopher Polhem, Swedish physicist and engineer (b. 1661)

Christopher Polhammar (18 December 1661 – 30 August 1751) better known as Christopher Polhem, which he took after his ennoblement in 1716, was a Swedish scientist, inventor and industrialist. He made significant contributions to the economic and industrial development of Sweden, particularly mining. He was ennobled by King Charles XII of Sweden for his contributions to Swedish technological development.

Notable accomplishments

• Founded Stjärnsunds manufakturverk in södra Dalarna during 1700.
• Reinvented the Cardan joint under the name of "Polhem knot" (Swedish: Polhemknut) independently of Gerolamo Cardano, the pioneer inventor.
• Organized machinery into a "mechanical alphabet" and provided examples of such. Of 80 models carved in wood, 32 are still in the collections of the National Museum of Science and Technology (Swedish:Tekniska Museet) in Stockholm. Another 13 models of the "mechanical alphabet" are to be found in the Falun Mining Museum, Sweden.

Swedish stamps depicting Christopher Polhem

1797 Born: Mary Shelley, English novelist and playwright (d. 1851)

Mary Wollstonecraft Shelley (30 August 1797 – 1 February 1851) was an English novelist who wrote the Gothic novel Frankenstein; or, The Modern Prometheus (1818). She also edited and promoted the works of her husband, the Romantic poet and philosopher Percy Bysshe Shelley. Her father was the political philosopher William Godwin and her mother was the philosopher and feminist Mary Wollstonecraft.

Shelley's mother died less than a month after giving birth to her. She was raised by her father who provided her with a rich if informal education, encouraging her to adhere to his own anarchist political theories. When she was four, her father married a neighbour with whom Shelley came to have a troubled relationship. 

In 1814, Shelley began a romance with one of her father's political followers, Percy Bysshe Shelley, who was already married. Together with her stepsister, Claire Clairmont, she and Percy left for France and travelled through Europe. Upon their return to England, Shelley was pregnant with Percy's child. Over the next two years, she and Percy faced ostracism, constant debt and the death of their prematurely born daughter. They married in late 1816, after the suicide of Percy Shelley's first wife, Harriet.

In 1816, the couple famously spent a summer with Lord Byron, John William Polidori and Claire Clairmont near Geneva, Switzerland, where Shelley conceived the idea for her novel Frankenstein. The Shelleys left Britain in 1818 for Italy, where their second and third children died before Shelley gave birth to her last and only surviving child, Percy Florence Shelley. In 1822, her husband drowned when his sailing boat sank during a storm near Viareggio. A year later, Shelley returned to England and from then on devoted herself to the upbringing of her son and a career as a professional author. The last decade of her life was dogged by illness, most likely caused by the brain tumour which killed her at age 53.

Until the 1970s, Shelley was known mainly for her efforts to publish her husband's works and for her novel Frankenstein, which remains widely read and has inspired many theatrical and film adaptations. Recent scholarship has yielded a more comprehensive view of Shelley's achievements. Scholars have shown increasing interest in her literary output, particularly in her novels, which include the historical novels Valperga (1823) and Perkin Warbeck (1830), the apocalyptic novel The Last Man (1826) and her final two novels, Lodore (1835) and Falkner (1837). Studies of her lesser-known works, such as the travel book Rambles in Germany and Italy (1844) and the biographical articles for Dionysius Lardner's Cabinet Cyclopaedia (1829–1846), support the growing view that Shelley remained a political radical throughout her life. Shelley's works often argue that cooperation and sympathy, particularly as practised by women in the family, were the ways to reform civil society. This view was a direct challenge to the individualistic Romantic ethos promoted by Percy Shelley and the Enlightenment political theories articulated by her father, William Godwin.

Stamps and cover from Jersey and Great Britain depicting Shelley's Frankenstein

1852 Born: Jacobus Henricus van 't Hoff, Dutch chemist and academic, Nobel Prize laureate (d. 1911)

Jacobus Henricus "Henry" van 't Hoff Jr. (30 August 1852 – 1 March 1911) was a Dutch physical chemist. A highly influential theoretical chemist of his time, Van 't Hoff was the first winner of the Nobel Prize in Chemistry. His pioneering work helped found the modern theory of chemical affinity, chemical equilibrium, chemical kinetics, and chemical thermodynamics. In his 1874 pamphlet Van 't Hoff formulated the theory of the tetrahedral carbon atom and laid the foundations of stereochemistry. In 1875, he predicted the correct structures of allenes and cumulenes as well as their axial chirality. He is also widely considered one of the founders of physical chemistry as the discipline is known today.

Van 't Hoff earned his earliest reputation in the field of organic chemistry. In 1874, he accounted for the phenomenon of optical activity by assuming that the chemical bonds between carbon atoms and their neighbors were directed towards the corners of a regular tetrahedron. This three-dimensional structure accounted for the isomers found in nature. He shares credit for this with the French chemist Joseph Le Bel, who independently came up with the same idea.

Three months before his doctoral degree was awarded, Van 't Hoff published this theory, which today is regarded as the foundation of stereochemistry, first in a Dutch pamphlet in the fall of 1874, and then in the following May in a small French book entitled La chimie dans l'espace. A German translation appeared in 1877, at a time when the only job Van 't Hoff could find was at the Veterinary School in Utrecht. In these early years his theory was largely ignored by the scientific community, and was sharply criticized by one prominent chemist.

In 1884, Van 't Hoff published his research on chemical kinetics, titled Études de Dynamique chimique ("Studies in Chemical Dynamics"), in which he described a new method for determining the order of a reaction using graphics and applied the laws of thermodynamics to chemical equilibria. He also introduced the modern concept of chemical affinity. In 1886, he showed a similarity between the behaviour of dilute solutions and gases. In 1887, he and German chemist Wilhelm Ostwald founded an influential scientific magazine named Zeitschrift für physikalische Chemie ("Journal of Physical Chemistry"). He worked on Svante Arrhenius's theory of the dissociation of electrolytes and in 1889 provided physical justification for the Arrhenius equation. In 1896, he became a professor at the Prussian Academy of Sciences in Berlin. His studies of the salt deposits at Stassfurt were an important contribution to Prussia's chemical industry.

Van 't Hoff became a lecturer in chemistry and physics at the Veterinary College in Utrecht. He then worked as a professor of chemistry, mineralogy, and geology at the University of Amsterdam for almost 18 years before eventually becoming the chairman of the chemistry department. In 1896, Van 't Hoff moved to Germany, where he finished his career at the University of Berlin in 1911. In 1901, he received the first Nobel Prize in Chemistry for his work with solutions. His work showed that very dilute solutions follow mathematical laws that closely resemble the laws describing the behavior of gases.

Stamps from Grenada and the Netherlands depicting Jacobus Henricus van 't Hoff

August 29th in stamps Michael Faraday discovers electromagnetic induction, Maurice Maeterlinck, Reitwagen patented

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

1831 – Michael Faraday discovers electromagnetic induction.

Michael Faraday (22 September 1791 – 25 August 1867) was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism and electrolysis.

Although Faraday received little formal education, he was one of the most influential scientists in history. It was by his research on the magnetic field around a conductor carrying a direct current that Faraday established the basis for the concept of the electromagnetic field in physics. Faraday also established that magnetism could affect rays of light and that there was an underlying relationship between the two phenomena. He similarly discovered the principles of electromagnetic induction and diamagnetism, and the laws of electrolysis. His inventions of electromagnetic rotary devices formed the foundation of electric motor technology, and it was largely due to his efforts that electricity became practical for use in technology.

As a chemist, Faraday discovered benzene, investigated the clathrate hydrate of chlorine, invented an early form of the Bunsen burner and the system of oxidation numbers, and popularised terminology such as "anode", "cathode", "electrode" and "ion". Faraday ultimately became the first and foremost Fullerian Professor of Chemistry at the Royal Institution, a lifetime position.

Faraday was an excellent experimentalist who conveyed his ideas in clear and simple language; his mathematical abilities, however, did not extend as far as trigonometry and were limited to the simplest algebra. James Clerk Maxwell took the work of Faraday and others and summarized it in a set of equations which is accepted as the basis of all modern theories of electromagnetic phenomena. On Faraday's uses of lines of force, Maxwell wrote that they show Faraday "to have been in reality a mathematician of a very high order – one from whom the mathematicians of the future may derive valuable and fertile methods." The SI unit of capacitance is named in his honour: the farad.

Albert Einstein kept a picture of Faraday on his study wall, alongside pictures of Isaac Newton and James Clerk Maxwell. Physicist Ernest Rutherford stated, "When we consider the magnitude and extent of his discoveries and their influence on the progress of science and of industry, there is no honour too great to pay to the memory of Faraday, one of the greatest scientific discoverers of all time."

Stamp and First Day Cover issued by Great Britain depicting Michael Faraday 

1862 Born: Maurice Maeterlinck, Belgian poet and playwright, Nobel Prize laureate (d. 1949)

Maurice Polydore Marie Bernard Maeterlinck (29 August 1862 – 6 May 1949), also known as Count (or Comte) Maeterlinck from 1932, was a Belgian playwright, poet, and essayist who was Flemish but wrote in French. He was awarded the Nobel Prize in Literature in 1911 "in appreciation of his many-sided literary activities, and especially of his dramatic works, which are distinguished by a wealth of imagination and by a poetic fancy, which reveals, sometimes in the guise of a fairy tale, a deep inspiration, while in a mysterious way they appeal to the readers' own feelings and stimulate their imaginations". The main themes in his work are death and the meaning of life. He was a leading member of La Jeune Belgique group and his plays form an important part of the Symbolist movement.

Swedish stamp depicting Maurice Maeterlinck

1885 – Gottlieb Daimler patents the world's first internal combustion motorcycle, the Reitwagen.

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

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

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

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

German and Hungarian stamps depicting Gottlieb Daimler or his cars

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

Here are some events that happened on August 12th. It could be an event or a person that died or was born on that day

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 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

August 9th in stamps Henry David Thoreau, Edward VII, Edith Stein, Hermann Hesse

Here are some events that happened on August 9th. It could be an event or a person that died or was born on that day

1854 – Henry David Thoreau publishes Walden.

Henry David Thoreau (July 12, 1817 – May 6, 1862) was an American essayist, poet, and philosopher. A leading transcendentalist, he is best known for his book Walden, a reflection upon simple living in natural surroundings, and his essay "Civil Disobedience" (originally published as "Resistance to Civil Government"), an argument for disobedience to an unjust state.

Walden ( first published as Walden; or, Life in the Woods) is a book by transcendentalist Henry David Thoreau. The text is a reflection upon simple living in natural surroundings. The work is part personal declaration of independence, social experiment, voyage of spiritual discovery, satire, and—to some degree—a manual for self-reliance.

First published in 1854, Walden details Thoreau's experiences over the course of two years, two months, and two days in a cabin he built near Walden Pond amidst woodland owned by his friend and mentor Ralph Waldo Emerson, near Concord, Massachusetts. Thoreau used this time (July 4, 1845 - September 6, 1847) to write his first book, A Week on the Concord and Merrimack Rivers (1849). The experience later inspired Walden, in which Thoreau compresses the time into a single calendar year and uses passages of four seasons to symbolize human development.

By immersing himself in nature, Thoreau hoped to gain a more objective understanding of society through personal introspection. Simple living and self-sufficiency were Thoreau's other goals, and the whole project was inspired by transcendentalist philosophy, a central theme of the American Romantic Period.

Thoreau makes precise scientific observations of nature as well as metaphorical and poetic uses of natural phenomena. He identifies many plants and animals by both their popular and scientific names, records in detail the color and clarity of different bodies of water, precisely dates and describes the freezing and thawing of the pond, and recounts his experiments to measure the depth and shape of the bottom of the supposedly "bottomless" Walden Pond.

US Stamps depicting Henry David Thoreau

1902 – Edward VII and Alexandra of Denmark are crowned King and Queen of the United Kingdom of Great Britain and Ireland.

Edward VII (Albert Edward; 9 November 1841 – 6 May 1910) was King of the United Kingdom of Great Britain and Ireland from 22 January 1901 until his death in 1910.

The eldest son of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha, Edward was related to royalty throughout Europe. He was heir apparent to the British throne and held the title of Prince of Wales for longer than any of his predecessors. During the long reign of his mother, he was largely excluded from political power, and came to personify the fashionable, leisured elite. He traveled throughout Britain performing ceremonial public duties, and represented Britain on visits abroad. His tours of North America in 1860 and the Indian subcontinent in 1875 were popular successes, but despite public approval his reputation as a playboy prince soured his relationship with his mother.

As king, Edward played a role in the modernization of the British Home Fleet and the reorganization of the British Army after the Second Boer War. He reinstituted traditional ceremonies as public displays and broadened the range of people with whom royalty socialized. He fostered good relations between Britain and other European countries, especially France, for which he was popularly called "Peacemaker", but his relationship with his nephew, the German Emperor Wilhelm II, was poor. The Edwardian era, which covered Edward's reign and was named after him, coincided with the start of a new century and heralded significant changes in technology and society, including steam turbine propulsion and the rise of socialism. He died in 1910 in the midst of a constitutional crisis that was resolved the following year by the Parliament Act 1911, which restricted the power of the unelected House of Lords.

Stamps issued by Great Britain depicting Edward VII

1942 Died: Edith Stein, German nun and saint (b. 1891)

Edith Stein (religious name Teresia Benedicta a Cruce OCD; also known as St. Edith Stein or St. Teresa Benedicta of the Cross; 12 October 1891 – 9 August 1942) was a German Jewish philosopher who converted to Catholicism and became a Discalced Carmelite nun. She is canonized as a martyr and saint of the Catholic Church, and she is one of six co-patron saints of Europe.

She was born into an observant Jewish family, but had become an atheist by her teenage years. Moved by the tragedies of World War I, in 1915 she took lessons to become a nursing assistant and worked in an infectious diseases hospital. After completing her doctoral thesis from the University of Göttingen in 1916, she obtained an assistantship at the University of Freiburg.

From reading the works of the reformer of the Carmelite Order, Teresa of Ávila, she was drawn to the Catholic faith. She was baptized on 1 January 1922 into the Catholic Church. At that point, she wanted to become a Discalced Carmelite nun, but was dissuaded by her spiritual mentors. She then taught at a Catholic school of education in Speyer. As a result of the requirement of an "Aryan certificate" for civil servants promulgated by the Nazi government in April 1933 as part of its Law for the Restoration of the Professional Civil Service, she had to quit her teaching position.

She was admitted to the Discalced Carmelite monastery in Cologne the following October. She received the religious habit of the Order as a novice in April 1934, taking the religious name Teresa Benedicta of the Cross. In 1938, she and her sister Rosa, by then also a convert and an extern sister (tertiaries of the Order, who would handle the community′s needs outside the monastery), were sent to the Carmelite monastery in Echt, Netherlands, for their safety. Despite the Nazi invasion of that state in 1940, they remained undisturbed until they were arrested by the Nazis on 2 August 1942 and sent to the Auschwitz concentration camp, where they are alleged to have died in the gas chamber on 9 August 1942.

German stamps depicting Edith Stein

1962 Died: Hermann Hesse, German-born Swiss poet, novelist, and painter, Nobel Prize laureate (b. 1877)

Hermann Karl Hesse (2 July 1877 – 9 August 1962) was a German-born Swiss poet, novelist, and painter. His best-known works include Demian, Steppenwolf, Siddhartha, and The Glass Bead Game, each of which explores an individual's search for authenticity, self-knowledge and spirituality. In 1946, he received the Nobel Prize in Literature.

In his time, Hesse was a popular and influential author in the German-speaking world; worldwide fame only came later. Hesse's first great novel, Peter Camenzind, was received enthusiastically by young Germans desiring a different and more "natural" way of life in this time of great economic and technological progress in the country. Demian had a strong and enduring influence on the generation returning home from the First World War. Similarly, The Glass Bead Game, with its disciplined intellectual world of Castalia and the powers of meditation and humanity, captivated Germans' longing for a new order amid the chaos of a broken nation following the loss in the Second World War. 

Towards the end of his life, German (born Bavarian) composer Richard Strauss (1864–1949) set three of Hesse's poems to music in his song cycle Four Last Songs for soprano and orchestra (composed 1948, first performed posthumously in 1950): "Frühling" ("Spring"), "September", and "Beim Schlafengehen" ("On Going to Sleep").

In the 1950s, Hesse's popularity began to wane, while literature critics and intellectuals turned their attention to other subjects. In 1955, the sales of Hesse's books by his publisher Suhrkamp reached an all-time low. However, after Hesse's death in 1962, posthumously published writings, including letters and previously unknown pieces of prose, contributed to a new level of understanding and appreciation of his works. 

By the time of Hesse's death in 1962, his works were still relatively little read in the United States, despite his status as a Nobel laureate. A memorial published in The New York Times went so far as to claim that Hesse's works were largely "inaccessible" to American readers. The situation changed in the mid-1960s, when Hesse's works suddenly became bestsellers in the United States. The revival in popularity of Hesse's works has been credited to their association with some of the popular themes of the 1960s counterculture (or hippie) movement. In particular, the quest-for-enlightenment theme of Siddhartha, Journey to the East, and Narcissus and Goldmund resonated with those espousing counter-cultural ideals. The "magic theatre" sequences in Steppenwolf were interpreted by some as drug-induced psychedelia although there is no evidence that Hesse ever took psychedelic drugs or recommended their use. To a large part, the Hesse boom in the United States can be traced back to enthusiastic writings by two influential counter-culture figures: Colin Wilson and Timothy Leary. From the United States, the Hesse renaissance spread to other parts of the world and even back to Germany: more than 800,000 copies were sold in the German-speaking world from 1972 to 1973. In a space of just a few years, Hesse became the most widely read and translated European author of the 20th century. Hesse was especially popular among young readers, a tendency which continues today. 

There is a quote from Demian on the cover of Santana's 1970 album Abraxas, revealing the source of the album's title.

Hesse's Siddhartha is one of the most popular Western novels set in India. An authorised translation of Siddhartha was published in the Malayalam language in 1990, the language that surrounded Hesse's grandfather, Hermann Gundert, for most of his life. A Hermann Hesse Society of India has also been formed. It aims to bring out authentic translations of Siddhartha in all Indian languages and has already prepared the Sanskrit, Malayalam and Hindi translations of Siddhartha. One enduring monument to Hesse's lasting popularity in the United States is the Magic Theatre in San Francisco. Referring to "The Magic Theatre for Madmen Only" in Steppenwolf (a kind of spiritual and somewhat nightmarish cabaret attended by some of the characters, including Harry Haller), the Magic Theatre was founded in 1967 to perform works by new playwrights. Founded by John Lion, the Magic Theatre has fulfilled that mission for many years, including the world premieres of many plays by Sam Shepard.

There is also a theater in Chicago named after the novel, Steppenwolf Theater.

German stamps depicting Hermann Hesse