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

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

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

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

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

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

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

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

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

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

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

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

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

French stamp depicting Augustin Fresnel

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

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

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

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

Stamps from Greece, Hungary and Russia depicting Lord Byron

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

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

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

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

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

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

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

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

Swedish stamp depicting Echegaray 

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

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

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

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

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

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

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

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

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

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

March 30th in stamps Mehmed the Conqueror, van Gogh. King George of Greece, Alaska purchase, Karl May

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

1432 Born: Mehmed the Conqueror, Ottoman sultan (d. 1481)

Mehmed II (30 March 1432 – 3 May 1481), commonly known as Mehmed the Conqueror (Turkish: Fatih Sultan Mehmet), was an Ottoman Sultan who ruled from August 1444 to September 1446, and then later from February 1451 to May 1481. In Mehmed II's first reign, he defeated the crusade led by John Hunyadi after the Hungarian incursions into his country broke the conditions of the truce Peace of Szeged. When Mehmed II ascended the throne again in 1451 he strengthened the Ottoman navy and made preparations to attack Constantinople.

At the age of 21, he conquered Constantinople (modern-day Istanbul) and brought an end to the Byzantine Empire. After the conquest Mehmed claimed the title "Caesar" of the Roman Empire (Qayser-i Rûm), based on the fact that Constantinople had been the seat and capital of the surviving Eastern Roman Empire since its consecration in 330 AD by Emperor Constantine I. The claim was only recognized by the Patriarchate of Constantinople. Nonetheless, Mehmed II viewed the Ottoman state as a continuation of the Roman Empire for the remainder of his life, seeing himself as "continuing" the Empire rather than "replacing" it. This assertion was eventually abandoned by his successors.

Mehmed continued his conquests in Anatolia with its reunification and in Southeast Europe as far west as Bosnia. At home he made many political and social reforms, encouraged the arts and sciences, and by the end of his reign, his rebuilding program had changed the city into a thriving imperial capital. He is considered a hero in modern-day Turkey and parts of the wider Muslim world. Among other things, Istanbul's Fatih district, Fatih Sultan Mehmet Bridge and Fatih Mosque are named after him.

Turkish sheet depicting Topkapi Palace and Sultan Mehmed The Conqueror

1853 Born: Vincent van Gogh, Dutch-French painter and illustrator (d. 1890)

Vincent Willem van Gogh (30 March 1853 – 29 July 1890) was a Dutch post-impressionist painter who is among the most famous and influential figures in the history of Western art. In just over a decade he created about 2,100 artworks, including around 860 oil paintings, most of them in the last two years of his life. They include landscapes, still lifes, portraits and self-portraits, and are characterised by bold colours and dramatic, impulsive and expressive brushwork that contributed to the foundations of modern art. He was not commercially successful, and his suicide at 37 followed years of mental illness and poverty


On 27 July 1890, aged 37, Van Gogh shot himself in the chest with a 7mm Lefaucheux à broche revolver. There were no witnesses and he died 30 hours after the incident. The shooting may have taken place in the wheat field in which he had been painting, or a local barn. The bullet was deflected by a rib and passed through his chest without doing apparent damage to internal organs – probably stopped by his spine. He was able to walk back to the Auberge Ravoux, where he was attended to by two doctors, but without a surgeon present the bullet could not be removed. The doctors tended to him as best they could, then left him alone in his room, smoking his pipe. The following morning Theo rushed to his brother's side, finding him in good spirits. But within hours Vincent began to fail, suffering from an untreated infection resulting from the wound. He died in the early hours of 29 July. According to Theo, Vincent's last words were: "The sadness will last forever"

Some stamps from the Netherlands, Monaco, Aruba and Ukraine depicting Vincent van Gogh or his works

1863 – Danish prince Wilhelm Georg is chosen as King George of Greece.

George I (24 December 1845 – 18 March 1913) was King of Greece from 30 March 1863 until his assassination in 1913.

Originally a Danish prince, he was born in Copenhagen, and seemed destined for a career in the Royal Danish Navy. He was only 17 years old when he was elected king by the Greek National Assembly, which had deposed the unpopular Otto. His nomination was both suggested and supported by the Great Powers: the United Kingdom of Great Britain and Ireland, the Second French Empire and the Russian Empire. He married Grand Duchess Olga Constantinovna of Russia in 1867, and became the first monarch of a new Greek dynasty. Two of his sisters, Alexandra and Dagmar, married into the British and Russian royal families. Edward VII of the United Kingdom and Alexander III of Russia were his brothers-in-law, and George V, Nicholas II, Christian X of Denmark and Haakon VII of Norway were his nephews.

George's reign of almost 50 years (the longest in modern Greek history) was characterized by territorial gains as Greece established its place in pre-World War I Europe. Britain ceded the Ionian Islands peacefully in 1864, while Thessaly was annexed from the Ottoman Empire after the Russo-Turkish War (1877–1878). Greece was not always successful in its territorial ambitions; it was defeated in the Greco-Turkish War (1897). During the First Balkan War, after Greek troops had captured much of Greek Macedonia, George was assassinated in Thessaloniki. Compared with his own long tenure, the reigns of his successors Constantine I, Alexander, and George II proved short and insecure.

Greece stamp depicting George I

1867 – Alaska is purchased from Russia for $7.2 million, about 2-cent/acre ($4.19/km2), by United States Secretary of State William H. Seward. 

The Alaska Purchase (Russian: Продажа Аляски, romanized: Prodazha Aliaski, meaning "Sale of Alaska") was the United States' acquisition of Alaska from the Russian Empire. Alaska was formally transferred to the United States on October 18, 1867, through a treaty ratified by the United States Senate.

Russia had established a presence in North America during the first half of the 18th century, but few Russians ever settled in Alaska. In the aftermath of the Crimean War, Russian Tzar Alexander II began exploring the possibility of selling Alaska, which would be difficult to defend in any future war from being conquered by Russia's main archrival, the United Kingdom. Following the end of the American Civil War, U.S. Secretary of State William Seward entered into negotiations with Russian minister Eduard de Stoeckl for the purchase of Alaska. Seward and Stoeckl agreed to a treaty on March 30, 1867, and the treaty was ratified by the United States Senate by a wide margin.

The purchase added 586,412 square miles (1,518,800 km2) of new territory to the United States for the cost of $7.2 million 1867 dollars (2 cents per acre). In modern terms, the cost was equivalent to $132 million in 2019 dollars or $0.37 per acre. Reactions to the purchase in the United States were mostly positive, as many believed possession of Alaska would serve as a base to expand American trade in Asia. Some opponents labeled the purchase as "Seward's Folly", or "Seward's Icebox", as they contended that the United States had acquired useless land. Nearly all Russian settlers left Alaska in the aftermath of the purchase; Alaska would remain sparsely populated until the Klondike Gold Rush began in 1896. Originally organized as the Department of Alaska, the area was renamed the District of Alaska (1884) and the Alaska Territory (1912) before becoming the modern State of Alaska in 1959.

US stamps issued to commemorate the Alaska purchase 

1912 Died: Karl May, German author (b. 1842)

Karl Friedrich May (25 February 1842 – 30 March 1912) was a German author. He is best known for his travel novels set on one hand in the American Old West with Winnetou and Old Shatterhand as main protagonists and on the other hand in the Orient and Middle East with Kara Ben Nemsi and Hadschi Halef Omar. May also wrote novels set in Latin America and Germany, poetry, a play, and composed music; he was a proficient player of several musical instruments. Many of his works were adapted for film, stage, audio dramas and comics. Later in his career, May turned to philosophical and spiritual genres. He is one of the best-selling German writers of all time, with about 200,000,000 copies worldwide.

German stamp depicting Winnetou 

March 18th in stamp Miloš Obrenović, Rudolf Diesel, Mohandas Gandhi is sentenced to six years in prison, Randal Cremer

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

1780 Born: Miloš Obrenović, Serbian prince (d. 1860)

Prince Miloš Obrenović I of Serbia (18 March 1780 or 1783 – 26 September 1860) born Miloš Teodorović was Prince of Serbia from 1815 to 1839, and again from 1858 to 1860. He participated in the First Serbian uprising, led Serbs in the Second Serbian uprising, and founded the House of Obrenović. Under his rule, Serbia became an autonomous principality within the Ottoman Empire. Prince Miloš ruled autocratically, consistently refusing to share power, which generated strong domestic opposition. During his rule, Miloš I bought a number of estates and ships from Ottoman Turks and also became a prominent trader. He was the richest man in Serbia and one of the richest in the Balkans, with estates in Vienna, Serbia and Wallachia.

Serbian stamps depicting Miloš Obrenović

1828 Born: Randal Cremer, English activist and politician, Nobel Prize laureate (d. 1908)

Sir William Randal Cremer (18 March 1828 – 22 July 1908) usually known by his middle name "Randal", was an English Liberal Member of Parliament, a pacifist, and a leading advocate for international arbitration. He was awarded the Nobel Peace Prize in 1903 for his work with the international arbitration movement.

From as early as his first unsuccessful run for Parliament in 1868, Cremer had advocated the expansion of international arbitration as peaceful alternative to war for the resolution of disputes.

He was elected as Liberal Member of Parliament (MP) for Haggerston in the Shoreditch district of Hackney from 1885 to 1895, and then from 1900 until his death from pneumonia in 1908.

Using his platform as an MP, Cremer cultivated allies on both continental Europe and across the Atlantic, including Frédéric Passy, William Jennings Bryan and Andrew Carnegie. Using his network of contacts and his talent for organisation, Cremer did much to create and expand institutions for international arbitration, which during his lifetime were successful in peacefully resolving numerous international disputes. This work includes co-founding the Inter-Parliamentary Union and the International Arbitration League; gaining acceptance for the 1897 Olney–Pauncefote Treaty between the United States and Britain that would have required arbitration of major disputes as the Essequibo territory (the treaty was rejected by the US Senate and never went into effect); and preparing the ground for the Hague peace conferences of 1899 and 1907.

In recognition of his work in the arbitration movement, Cremer won the Nobel Peace Prize, the first to do so solo, in 1903. Of the £8,000 award he donated £7,000 as an endowment for the International Arbitration League.

He also was named a Chevalier of the French Légion d'honneur, won the Norwegian Knighthood of Saint Olaf and was knighted in 1907.

Stamp issued by Guinea Bissau depicting Randal Cremer

1858 Born: Rudolf Diesel, German engineer, invented the Diesel engine (d. 1913)

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

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

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

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

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

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

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

Stamps from Germany and Saarland depicting Diesel

1922 – In India, Mohandas Gandhi is sentenced to six years in prison for civil disobedience, of which he serves only two.

Mohandas Karamchand Gandhi (2 October 1869 – 30 January 1948) was an Indian lawyer, anti-colonial nationalist, and political ethicist, who employed nonviolent resistance to lead the successful campaign for India's independence from British Rule, and in turn inspire movements for civil rights and freedom across the world. The honorific Mahātmā (Sanskrit: "great-souled", "venerable"), first applied to him in 1914 in South Africa, is now used throughout the world.

Born and raised in a Hindu family in coastal Gujarat, western India, Gandhi was trained in law at the Inner Temple, London, and called to the bar at age 22 in June 1891. After two uncertain years in India, where he was unable to start a successful law practice, he moved to South Africa in 1893 to represent an Indian merchant in a lawsuit. He went on to stay for 21 years. It was in South Africa that Gandhi raised a family, and first employed nonviolent resistance in a campaign for civil rights. In 1915, aged 45, he returned to India. He set about organizing peasants, farmers, and urban laborers to protest against excessive land-tax and discrimination. Assuming leadership of the Indian National Congress in 1921, Gandhi led nationwide campaigns for easing poverty, expanding women's rights, building religious and ethnic amity, ending untouchability, and above all for achieving Swaraj or self-rule.

The same year Gandhi adopted the Indian loincloth, or short dhoti and, in the winter, a shawl, both woven with yarn hand-spun on a traditional Indian spinning wheel, or charkha, as a mark of identification with India's rural poor. Thereafter, he lived modestly in a self-sufficient residential community, ate simple vegetarian food, and undertook long fasts as a means of self-purification and political protest. Bringing anti-colonial nationalism to the common Indians, Gandhi led them in challenging the British-imposed salt tax with the 400 km (250 mi) Dandi Salt March in 1930, and later in calling for the British to Quit India in 1942. He was imprisoned for many years, upon many occasions, in both South Africa and India.

Gandhi's vision of an independent India based on religious pluralism was challenged in the early 1940s by a new Muslim nationalism which was demanding a separate Muslim homeland carved out of India. In August 1947, Britain granted independence, but the British Indian Empire was partitioned into two dominions, a Hindu-majority India and Muslim-majority Pakistan. As many displaced Hindus, Muslims, and Sikhs made their way to their new lands, religious violence broke out, especially in the Punjab and Bengal. Eschewing the official celebration of independence in Delhi, Gandhi visited the affected areas, attempting to provide solace. In the months following, he undertook several fasts unto death to stop religious violence. The last of these, undertaken on 12 January 1948 when he was 78, also had the indirect goal of pressuring India to pay out some cash assets owed to Pakistan. Some Indians thought Gandhi was too accommodating.  Among them was Nathuram Godse, a Hindu nationalist, who assassinated Gandhi on 30 January 1948 by firing three bullets into his chest

Stamps from various countries depicting Gandhi

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

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

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

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

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

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

Stamps from Greece, Hungary and Russia depicting Lord Byron

1900 – Fußball-Club Bayern München is founded.

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

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

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

German stamps issued to commemorate Bayern München's successes

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

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

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

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

US stamp and FDC commemorating John Steinbeck

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

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

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

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

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

January 30th in stamps Franklin D. Roosevelt, Mahatma Gandhi, Orville Wright, Ferdinand Porsche

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

1882 Born: Franklin D. Roosevelt, American lawyer and politician, 32nd President of the United States (d. 1945)

Franklin Delano Roosevelt (January 30, 1882 – April 12, 1945), often referred to by his initials FDR, was an American politician who served as the 32nd president of the United States from 1933 until his death in 1945. A member of the Democratic Party, he won a record four presidential elections and became a central figure in world events during the first half of the 20th century. Roosevelt directed the federal government during most of the Great Depression, implementing his New Deal domestic agenda in response to the worst economic crisis in U.S. history. As a dominant leader of his party, he built the New Deal Coalition, which realigned American politics into the Fifth Party System and defined American liberalism throughout the middle third of the 20th century. His third and fourth terms were dominated by World War II, which ended shortly after he died in office. He is rated by scholars as one of the three greatest U.S. presidents, along with George Washington and Abraham Lincoln, but has also been subject to substantial criticism.



Roosevelt was born in Hyde Park, New York, to a Dutch American family made well known by the reputation of Theodore Roosevelt, the 26th president of the United States, and William Henry Aspinwall. FDR graduated from Groton School and Harvard College and attended Columbia Law School but left after passing the bar exam to practice law in New York City. In 1905, he married his fifth cousin once removed, Eleanor Roosevelt. They had six children, of whom five survived into adulthood. He won election to the New York State Senate in 1910, and then served as Assistant Secretary of the Navy under President Woodrow Wilson during World War I. Roosevelt was James M. Cox's running mate on the Democratic Party's 1920 national ticket, but Cox was defeated by Republican Warren G. Harding. In 1921, Roosevelt contracted a paralytic illness, believed at the time to be polio, and his legs became permanently paralyzed. While attempting to recover from his condition, Roosevelt founded the treatment center in Warm Springs, Georgia, for people with poliomyelitis. In spite of being unable to walk unaided, Roosevelt returned to public office by winning election as Governor of New York in 1928. He served as governor from 1929 to 1933, promoting programs to combat the economic crisis besetting the United States.



In the 1932 presidential election, Roosevelt defeated Republican President Herbert Hoover in a landslide. Roosevelt took office in the midst of the Great Depression, the worst economic crisis in U.S. history. During the first 100 days of the 73rd United States Congress, Roosevelt spearheaded unprecedented federal legislation and issued a profusion of executive orders that instituted the New Deal—a variety of programs designed to produce relief, recovery, and reform. He created numerous programs to provide relief to the unemployed and farmers while seeking economic recovery with the National Recovery Administration and other programs. He also instituted major regulatory reforms related to finance, communications, and labor, and presided over the end of Prohibition. He harnessed radio to speak directly to the American people, giving 30 "fireside chat" radio addresses during his presidency and becoming the first American president to be televised. The economy having improved rapidly from 1933 to 1936, Roosevelt won a landslide reelection in 1936. However, the economy then relapsed into a deep recession in 1937 and 1938. After the 1936 election, Roosevelt sought passage of the Judiciary Reorganization Bill of 1937 (the "court packing plan"), which would have expanded the size of the Supreme Court of the United States. The bipartisan Conservative Coalition that formed in 1937 prevented passage of the bill and blocked the implementation of further New Deal programs and reforms. Major surviving programs and legislation implemented under Roosevelt include the Securities and Exchange Commission, the National Labor Relations Act, the Federal Deposit Insurance Corporation, Social Security, and the Fair Labor Standards Act of 1938.

The United States reelected FDR in 1940 for his third term, making him the only U.S. President to serve for more than two terms. With World War II looming after 1938, Roosevelt gave strong diplomatic and financial support to China, the United Kingdom and eventually the Soviet Union while the U.S. remained officially neutral. Following the Japanese attack on Pearl Harbor on December 7, 1941, an event he famously called "a date which will live in infamy", Roosevelt obtained a congressional declaration of war on Japan, and, a few days later, on Germany and Italy. Assisted by his top aide Harry Hopkins and with very strong national support, he worked closely with British Prime Minister Winston Churchill, Soviet leader Joseph Stalin and Chinese Generalissimo Chiang Kai-shek in leading the Allied Powers against the Axis Powers. Roosevelt supervised the mobilization of the U.S. economy to support the war effort, and implemented a Europe first strategy, making the defeat of Germany a priority over that of Japan. He also initiated the development of the world's first atomic bomb, and worked with the other Allied leaders to lay the groundwork for the United Nations and other post-war institutions. Roosevelt won reelection in 1944, but with his physical health declining during the war years, he died in April 1945, less than three months into his fourth term. The Axis Powers surrendered to the Allies in the months following Roosevelt's death, during the presidency of his successor, Harry S. Truman.

Stamps from Greece, Philippines, Monaco and the US depicting Roosevelt

1948 Died: Mahatma Gandhi, leader of the Indian independence movement against British rule (b. 1869)

Mohandas Karamchand Gandhi (2 October 1869 – 30 January 1948) was an Indian lawyer, anti-colonial nationalist, and political ethicist, who employed nonviolent resistance to lead the successful campaign for India's independence from British Rule, and in turn inspire movements for civil rights and freedom across the world. The honorific Mahātmā (Sanskrit: "great-souled", "venerable"), first applied to him in 1914 in South Africa, is now used throughout the world.

Born and raised in a Hindu family in coastal Gujarat, western India, Gandhi was trained in law at the Inner Temple, London, and called to the bar at age 22 in June 1891. After two uncertain years in India, where he was unable to start a successful law practice, he moved to South Africa in 1893 to represent an Indian merchant in a lawsuit. He went on to stay for 21 years. It was in South Africa that Gandhi raised a family, and first employed nonviolent resistance in a campaign for civil rights. In 1915, aged 45, he returned to India. He set about organizing peasants, farmers, and urban laborers to protest against excessive land-tax and discrimination. Assuming leadership of the Indian National Congress in 1921, Gandhi led nationwide campaigns for easing poverty, expanding women's rights, building religious and ethnic amity, ending untouchability, and above all for achieving Swaraj or self-rule.

The same year Gandhi adopted the Indian loincloth, or short dhoti and, in the winter, a shawl, both woven with yarn hand-spun on a traditional Indian spinning wheel, or charkha, as a mark of identification with India's rural poor. Thereafter, he lived modestly in a self-sufficient residential community, ate simple vegetarian food, and undertook long fasts as a means of self-purification and political protest. Bringing anti-colonial nationalism to the common Indians, Gandhi led them in challenging the British-imposed salt tax with the 400 km (250 mi) Dandi Salt March in 1930, and later in calling for the British to Quit India in 1942. He was imprisoned for many years, upon many occasions, in both South Africa and India.

Gandhi's vision of an independent India based on religious pluralism was challenged in the early 1940s by a new Muslim nationalism which was demanding a separate Muslim homeland carved out of India. In August 1947, Britain granted independence, but the British Indian Empire was partitioned into two dominions, a Hindu-majority India and Muslim-majority Pakistan. As many displaced Hindus, Muslims, and Sikhs made their way to their new lands, religious violence broke out, especially in the Punjab and Bengal. Eschewing the official celebration of independence in Delhi, Gandhi visited the affected areas, attempting to provide solace. In the months following, he undertook several fasts unto death to stop religious violence. The last of these, undertaken on 12 January 1948 when he was 78, also had the indirect goal of pressuring India to pay out some cash assets owed to Pakistan. Some Indians thought Gandhi was too accommodating.  Among them was Nathuram Godse, a Hindu nationalist, who assassinated Gandhi on 30 January 1948 by firing three bullets into his chest

Stamps from various countries depicting Gandhi

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

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

1951 Died: Ferdinand Porsche, Austrian-German engineer and businessman, founded Porsche (b. 1875)

Ferdinand Porsche (3 September 1875 – 30 January 1951) was an Austrian automotive engineer and founder of the Porsche car company. He is best known for creating the first gasoline-electric hybrid vehicle (Lohner-Porsche), the Volkswagen Beetle, the Mercedes-Benz SS/SSK, several other important developments and Porsche automobiles.

An important contributor to the German war effort during World War II, Porsche was involved in the production of advanced tanks such as the VK 4501 (P), Tiger I, Tiger II, Elefant, and Panzer VIII Maus, as well as other weapon systems, including the V-1 flying bomb. Porsche was a member of the Nazi Party, and was called the "Great German Engineer" by Nazi officials. He was a recipient of the German National Prize for Art and Science, the SS-Ehrenring and the War Merit Cross.

Porsche was inducted into the International Motorsports Hall of Fame in 1996 and won the Car Engineer of the Century award in 1999

Some stamps depicting Ferdinand Porsche or the Porsche car