September 20 in History

Agnes of Poitou was the queen of Germany from 1043 and empress of the Holy Roman Empire from 1046 until 1056 as the wife of Emperor Henry III. From 1056 to 1061, she ruled the Holy Roman Empire as regent during the minority of their son Henry IV.

The Battle of Fulford was fought on the outskirts of the village of Fulford, just south of York in England, on 20 September 1066. King Harald III of Norway, also known as Harald Hardrada, a claimant to the English throne, and Tostig Godwinson, his English ally, fought and defeated the Northern Earls Edwin and Morcar. Hardrada's army consisted of allies from Orkney and a contingent with Tostig, as well as those coming from Norway. They crossed the sea in a fleet of ships and made their base south of York at Riccall. On 20 September 1066 the Vikings advanced towards York. The largely inexperienced Saxon army led by Morcar at York and Edwin at Tadcaster moved to block the invaders. The Anglo-Saxon Chronicle says that the opposing armies met on the east bank of the River Ouse and that initially the Saxons caused heavy losses on the Viking army. Ultimately, the Norse army overwhelmed the Saxon army although the earls themselves survived this defeat. After winning, the victorious Norwegians entered York, gathered supplies, and asked for hostages.

Salah ad-Din Yusuf ibn Ayyub, commonly known as Saladin, was the founder of the Ayyubid dynasty and the first sultan of both Egypt and Syria. A Sunni Muslim ruler of Kurdish origin, Saladin was an important figure of the Third Crusade and spearheaded the Muslim military effort against the Crusader states in the Levant. At the height of his power, the Ayyubid realm spanned Egypt, Syria, Upper Mesopotamia, the Hejaz, Yemen, and Nubia.

The Prussian uprisings were two major and three smaller uprisings by the Old Prussians, one of the Baltic tribes, against the Teutonic Knights that took place in the 13th century during the Prussian Crusade. The crusading military order, supported by the Popes and Christian Europe, sought to conquer and convert the pagan Prussians. In the first ten years of the crusade, five of the seven major Prussian clans fell under the control of the less numerous Teutonic Knights. However, the Prussians rose against their conquerors on five occasions. The first uprising was supported by Duke Swietopelk II, Duke of Pomerania. The Prussians were successful at first, reducing the Knights to only five of their strongest castles. The duke then suffered a series of military defeats and was eventually forced to make peace with the Teutonic Knights. With Duke Swietopelk's support for the Prussians broken, a prelate of Pope Innocent IV negotiated a peace treaty between the Prussians and the Knights. This treaty was never honored or enforced, especially after the Prussian victory in the Battle of Krücken at the end of 1249. The second uprising, known in historiography as "the great Prussian uprising", was prompted by the 1260 Battle of Durbe, the largest defeat suffered by the Teutonic Knights in the 13th century. This uprising was the longest, largest, and most threatening to the Teutonic Order, who again were reduced to five of their strongest castles. Reinforcements for the Knights were slow to arrive, despite repeated encouragements from Pope Urban IV, and the position of the Order looked set to worsen. The Prussians lacked unity and a common strategy and reinforcements finally reached Prussia in around 1265. One by one, the Prussian clans surrendered and the uprising was ended in 1274. The later three lesser uprisings relied on foreign assistance and were suppressed within one or two years. The last uprising in 1295 effectively ended the Prussian Crusade, and Prussia became a Christian territory with a number of settlers from different German states.

Robert of Geneva (French: Robert de Genève; 1342 – 16 September 1394) was elected to the papacy as Clement VII (French: Clément VII) by the cardinals who opposed Urban VI and was the first antipope residing in Avignon, France. His election led to the Western Schism. The son of Count Amadeus III of Geneva, Robert became archbishop of Cambrai and was made a cardinal in 1371. As legate, during the War of the Eight Saints, he is said to have authorized the massacre of over 2,000 civilians at Cesena in 1377. He was elected pope the following year by the cardinals who opposed Urban VI and established himself at Avignon.

The 1498 Meiō earthquake (明応地震 Meiō Jishin) struck off the coast of Nankaidō, Japan, at approximately 08:00 local time on September 20, 1498. With an estimated magnitude of 8.6 Ms, it triggered a massive tsunami. The exact death toll from this event remains uncertain, but reports range from 5,000 to 41,000 casualties. The tsunami, caused by the Meiō Nankaidō earthquake, washed away the building that housed the statue of the Great Buddha at Kōtoku-in in Kamakura, although the statue itself remained intact.

Ferdinand Magellan (c. 1480 – 27 April 1521) was a Portuguese explorer best known for planning and leading the 1519–1522 Spanish expedition to the East Indies. During this expedition, he became the first European to encounter the Strait of Magellan, performed the first European crossing of the Pacific Ocean, and made the first known European contact with the Philippines. Magellan was killed in battle in the Philippines in 1521, but his crew, commanded by Spanish navigator Juan Sebastián Elcano, completed the return trip to Spain in 1522, achieving the first circumnavigation of Earth in history. Born around 1480 into a family of minor Portuguese nobility, Magellan became a skilled sailor and naval officer in the service of the Portuguese Crown in Asia. However, King Manuel I refused to support Magellan's plan to reach the Moluccas, or Spice Islands, by sailing westwards around the American continent. Magellan then proposed the same plan to King Charles I of Spain, who approved it. In Seville, he married, fathered two children, and organized the expedition. In 1518, for his allegiance to the Hispanic monarchy, Magellan was appointed an admiral of the Spanish fleet and given command of the expedition—the five-ship "Armada of Molucca". He also was made a Commander of the Order of Santiago, one of the highest military ranks of the Spanish Empire. Granted special powers and privileges by the king, he led the Armada from Sanlúcar de Barrameda southwest across the Atlantic Ocean, to the eastern coast of South America, and south to Patagonia. Despite a series of storms and mutinies, the expedition successfully passed through the Strait of Magellan into the Mar del Sur, which Magellan renamed the Mar Pacifico, or Pacific Ocean. The expedition landed at Guam after an arduous crossing of the Pacific, then reached the Philippines. There, on 27 April 1521, Magellan died in the Battle of Mactan after being shot in the neck with a poison arrow. Under the command of Captain Juan Sebastián Elcano, the expedition finally reached the Spice Islands. The fleet's two remaining ships then parted ways, one attempting, unsuccessfully, to reach New Spain by sailing east across the Pacific. The other ship, commanded by Elcano, sailed west across the Indian Ocean and north along the Atlantic coast of Africa, finally returning to Spain in September 1522. While in the Kingdom of Portugal's service, Magellan had already reached the Malay Archipelago in Southeast Asia on previous voyages traveling east (from 1505 to 1511–1512). By visiting this area again but now traveling west, Magellan achieved a nearly complete personal circumnavigation of the globe for the first time in history.

The Babington Plot was a plan in 1586 to assassinate Queen Elizabeth I, a Protestant, and put Mary, Queen of Scots, her Catholic cousin, on the English throne. It led to Mary's execution, a result of a letter sent by Mary (who had been imprisoned for 19 years since 1568 in England at the behest of Elizabeth) in which she consented to the assassination of Elizabeth. The long-term goal of the plot was the invasion of England by the Spanish forces of King Philip II and the Catholic League in France, leading to the restoration of the old religion. The plot was discovered by Elizabeth's spymaster Sir Francis Walsingham and used to entrap Mary for the purpose of removing her as a claimant to the English throne. The chief conspirators were Anthony Babington and John Ballard. Babington, a young recusant, was recruited by Ballard, a Jesuit priest who hoped to rescue the Scottish queen. Working for Walsingham were double agents Robert Poley and Gilbert Gifford, as well as Thomas Phelippes, a spy agent and cryptanalyst, and the Puritan spy Maliverey Catilyn. The turbulent Catholic deacon Gifford had been in Walsingham's service since the end of 1585 or the beginning of 1586. Gifford obtained a letter of introduction to Queen Mary from a confidant and spy for her, Thomas Morgan. Walsingham then placed double agent Gifford and spy decipherer Phelippes inside Chartley Castle, where Queen Mary was imprisoned. Gifford organised the Walsingham plan to place Babington's and Queen Mary's encrypted communications into a beer barrel cork which were then intercepted by Phelippes, decoded and sent to Walsingham. On 7 July 1586, the only Babington letter that was sent to Mary was decoded by Phelippes. Mary responded in code on 17 July 1586 ordering the would-be rescuers to assassinate Queen Elizabeth. The response letter also included deciphered phrases indicating her desire to be rescued: "The affairs being thus prepared" and "I may suddenly be transported out of this place". At the Fotheringay trial in October 1586, Elizabeth's Lord High Treasurer William Cecil – Lord Burghley – and Walsingham used the letter against Mary, who refused to admit that she was guilty. However, Mary was betrayed by her secretaries Claude Nau and Gilbert Curle, who confessed under pressure that the letter was mainly truthful.

Grave is a city and former municipality in the Dutch province of North Brabant. The former municipality had a population of 12,486 in 2021. Grave is a member of the Dutch Association of Fortified Cities.

The Peace of Ryswick, or Rijswijk, were a series of treaties signed in the Dutch city of Rijswijk between 20 September and 30 October 1697. They ended the 1688 to 1697 Nine Years' War between France and the Grand Alliance, which included the Dutch Republic, the Holy Roman Empire, England, Scotland, and Spain. One of a series of wars fought by Louis XIV of France between 1666 and 1714, neither side was able to make significant territorial gains. By 1695, the huge financial costs, coupled with widespread famine and economic dislocation, meant both sides needed peace. Negotiations were delayed by the question of who would inherit the Spanish Empire from the childless and terminally ill Charles II of Spain, the closest heirs being Louis and Emperor Leopold I. Since Louis could not impose his preferred solution, he refused to discuss the issue, while Leopold refused to sign without its inclusion. He finally did so with great reluctance on 30 October 1697, but the Peace was generally viewed as a truce; Charles' death in 1700 led to the War of the Spanish Succession. In Europe and North America, the terms essentially restored the position prevailing before the war, though Spain recognized French control of the island of Tortuga and the western portion of Hispaniola (Saint-Domingue). In Europe, France evacuated several territories it had occupied since the 1679 Treaty of Nijmegen, including Freiburg, Breisach and the Duchy of Lorraine; conversely, it retained Strasbourg.

The Walking Purchase, also known as the Walking Treaty, was a 1737 agreement between the family of William Penn, the original proprietor of the Province of Pennsylvania, and the Lenape native Indians. In the purchase, the Penn family and proprietors produced a deed to claim that a 1686 treaty with the Lenape ceded an area of 1,200,000 acres (4,860 km2) in present-day Lehigh Valley and Northeastern Pennsylvania in colonial Pennsylvania, which included a western land boundary extending as far west as a man could walk in a day and a half - its namesake. The area is along the northern reaches of the Delaware River, on Pennsylvania's border with what was called, at the time, West Jersey. Encyclopædia Britannica refers to the treaty as a "land swindle". The Lenape appealed to the Haudenosaunee to their north for aid on the issue, but the Haudenosaunee refused their request, ultimately siding with the Penn interests. Nearly 300 years later, in 2004, a lawsuit was filed over the continuing dispute. In the case, Delaware Nation v. Pennsylvania, the Delaware Tribe, one of three later federally-recognized Lenape tribes, and its descendants in the 21st century claimed 314 acres (1.27 km2) of land included in the original purchase in 1737, but the U.S. District Court granted the Commonwealth's motion to dismiss. It ruled that the case was nonjusticiable, even if the Delaware Nation's allegations of fraud were factually accurate. This ruling was upheld through several appeals in the United States courts of appeals, which culminated in the U.S. Supreme Court refusing to hear the case, thereby upholding the lower courts' decision.

The Battle of Valmy, also known as the Cannonade of Valmy, was the first major victory by the army of France during the Revolutionary Wars that followed the French Revolution. The battle took place on 20 September 1792 as Prussian troops commanded by the Duke of Brunswick attempted to march on Paris. Generals François Kellermann and Charles Dumouriez stopped the advance near the northern village of Valmy in Champagne-Ardenne. In this early part of the Revolutionary Wars—known as the War of the First Coalition—the new French government was in almost every way unproven, and thus the small, localized victory at Valmy became a huge psychological victory for the Revolution at large. The outcome was thoroughly unexpected by contemporary observers—a vindication for the French revolutionaries and a stunning defeat for the vaunted Prussian army. The victory emboldened the newly assembled National Convention to formally declare the end of monarchy in France and to establish the French Republic. Valmy permitted the development of the Revolution and all its resultant ripple effects, and for that it is regarded by historians as one of the most significant battles in history.

The Ragamuffin War (Portuguese: Guerra dos Farrapos), also known as the Ragamuffin Revolution or Heroic Decade, was a republican uprising that began in southern Brazil during the regency period, centered in the province of Rio Grande do Sul and, for a time, extending into Santa Catarina. It began on 20 September 1835, when rebel forces seized Porto Alegre, and soon turned into a wider confrontation between Brazil's imperial government and a coalition led by Bento Gonçalves and Antônio de Sousa Neto, who proclaimed the secession of the province and the creation of the Riograndense Republic following the rebel victory at the battle of Seival in 1836. The war is often situated within the political and institutional instability of Brazil's regency period, when several armed conflicts erupted across the country, exposing the fragility of the imperial authority amid disputes between the Central government and Brazil's provinces over the latter's degree of autonomy. In Rio Grande do Sul, whose economy relied on livestock and the production of jerked beef for the internal market, the immediate cause for revolt lay with the landowners dissatisfaction with high export taxes and import duties on salt imposed by the Imperial government, while Uruguay and Argentina benefited from more favorable taxation in Brazilian markets, thus making the local produce less competitive within the country, but it is also attributed to a desire for greater autonomy and opposition to the government's centralized control over the province. Once proclaimed, the new republic operated from shifting inland capitals such as Piratini, as Porto Alegre remained in Imperial control for the remainder of the conflict after being recaptured in 1836. From the late 1830s onward, the war also became entangled with the politics of the wider Río de la Plata region, as the rebels pursued agreements and alliances with neighboring Argentine and Uruguayan caudillos, notably Fructuoso Rivera. In 1839, with the participation of the Italian revolutionary Giuseppe Garibaldi, the republicans took the war to the Brazilian coast and proclaimed the short-lived Juliana Republic in Santa Catarina following the capture of Laguna. The revolution also influenced other rebel movements in the country, such as the Sabinada, in Bahia, in 1837, and the Liberal Rebellions in Minas Gerais and São Paulo, in 1842. It ended on 1 March 1845 with the Treaty of Ponche Verde, which granted amnesty and reintegration terms for the rebel leaders into the Imperial Army. Some rebel leaders promised freedom to those enslaved men who enlisted into the Republican army and as a result many slaves organized their own troops during the conflict, including the Black Lancers, who were annihilated in a surprise attack in 1844 known as the Porongos Massacre. Due to this fact, the historian Clóvis Moura interpreted the Ragamuffin movement as abolitionist, but other historians argue he was mistaken. The rebels as a whole never demanded the general abolition of slavery, and the 1843 republican constitution preserved slavery; while most rebel commanders, including Bento Gonçalves, were themselves slaveholders.

The American Association for the Advancement of Science (AAAS) is a United States–based international nonprofit with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsibility, and supporting scientific education and science outreach for the betterment of all humanity. AAAS was the first permanent organization established to promote science and engineering nationally and to represent the interests of American researchers from across all scientific fields. It is the world's largest general scientific society, with over 120,000 members, and is the publisher of the well-known scientific journal Science.

The Crimean War was fought between Russia and an alliance of the Ottoman Empire, France, the United Kingdom, and Sardinia from October 1853 to February 1856. Geopolitical causes of the war included the Eastern question, the expansion of Russia in the preceding Russo-Turkish wars, and the British and French preference to preserve the Ottoman Empire to maintain the balance of power in the Concert of Europe.

The Indian Rebellion of 1857 was a major uprising in India in 1857–58 against the rule of the British East India Company, which functioned as a sovereign power, including military forces, on behalf of the British Crown. The rebellion began on 10 May 1857 as a mutiny of sepoys of the company's garrison in Meerut, a town 40 miles (64 km) northeast of Delhi. It then erupted into other mutinies and civilian rebellions, chiefly in the upper Gangetic plain and central India, though incidents of revolt also occurred farther north and east. The rebellion posed a military threat to British power in that region, and was contained only with the rebels' defeat in Gwalior on 20 June 1858. On 1 November 1858, the British granted amnesty to all rebels not involved in murder, though they did not declare the hostilities to have formally ended until 8 July 1859. The name of the revolt is contested, and it is variously described as the Sepoy Mutiny, the Indian Mutiny, the Great Rebellion, the Revolt of 1857, the Indian Insurrection, and the First War of Independence. The Indian rebellion was fed by resentments born of diverse perceptions, including invasive British-style social reforms, harsh land taxes, summary treatment of some rich landowners and princes, and scepticism about British claims that their rule offered material improvement to the Indian economy. Many Indians rose against the British; however, many also fought for the British, and the majority remained seemingly compliant to British rule. Violence, which sometimes betrayed exceptional cruelty, was inflicted on both sides: on British officers and civilians, including women and children, by the rebels, and on the rebels and their supporters, including sometimes entire villages, by British reprisals; the cities of Delhi and Lucknow were laid waste in the fighting and the British retaliation. After the outbreak of the mutiny in Meerut, the rebels quickly reached Delhi, whose 81-year-old Mughal ruler, Bahadur Shah Zafar, was declared the Emperor of Hindustan. Soon, the rebels had captured large tracts of the North-Western Provinces and Awadh (Oudh). The East India Company's response came rapidly as well. With help from reinforcements, Kanpur was retaken by mid-July 1857, and Delhi by the end of September. However, it then took the remainder of 1857 and the better part of 1858 for the rebellion to be suppressed in Jhansi, Lucknow, and especially the Awadh countryside. Other regions of Company-controlled India— the Bengal Presidency, the Bombay Presidency, and the Madras Presidency—remained largely calm. In the Punjab, the Sikh princes crucially helped the British by providing both soldiers and support. The large princely states, Hyderabad, Mysore, Travancore, and Kashmir, as well as the smaller ones of Rajputana, did not join the rebellion, serving the British, in Governor-General Lord Canning's words, as "breakwaters in a storm". In some regions, most notably in Awadh, the rebellion took on the attributes of a patriotic revolt against British oppression. However, the rebel leaders proclaimed no articles of faith that presaged a new political system. Even so, the rebellion proved to be an important watershed in Indian and British Empire history. It led to the dissolution of the East India Company and forced the British to reorganize the army, the financial system, and the administration in India through passage of the Government of India Act 1858. India was thereafter administered directly by the British government in the new British Raj. On 1 November 1858, Queen Victoria issued a proclamation to Indians, which, while lacking the authority of a constitutional provision, promised rights similar to those of other British subjects. In the following decades, when admission to these rights was not always forthcoming, Indians were to pointedly refer to the Queen's proclamation in growing avowals of a new nationalism.

Edward VII (Albert Edward; 9 November 1841 – 6 May 1910) was King of the United Kingdom and the British Dominions, and Emperor of India, from 22 January 1901 until his death in 1910. The second child and eldest son of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha, Edward, nicknamed "Bertie", was Prince of Wales and heir apparent to the British throne for almost 60 years. During his mother's long reign, he was largely excluded from political influence and came to personify the leisured elite. He married Princess Alexandra of Denmark in 1863; the couple had six children. As Prince of Wales, Edward travelled throughout Britain performing ceremonial public duties and represented Britain on visits abroad. His tours of North America in 1860 and of the Indian subcontinent in 1875 proved popular successes. Despite this public approval, his reputation as a playboy prince soured his relationship with his mother. Edward inherited the throne on his mother's death in 1901. He proved to be an effective constitutional monarch whose reign strengthened the popularity of the British monarchy. He played a role in the modernisation of the British Home Fleet and the reorganisation of the British Army after the Second Boer War of 1899 to 1902. He re-instituted traditional ceremonies as public displays and broadened the range of people with whom royalty socialised. 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, 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. Edward died in the midst of a constitutional crisis that was resolved by the Parliament Act 1911, which restricted the power of the unelected House of Lords. Edward was succeeded as king by his only surviving son, George V.

The American Civil War was a civil war in the United States between the Union and the Confederacy, which was formed in 1861 by states that had seceded from the Union to preserve slavery in the United States. The South saw slavery as threatened because of the election of Abraham Lincoln and the growing abolitionist movement in the North. The war ended with Union victory, the dissolution of the Confederacy and the abolition of slavery, freeing four million African Americans.

The capture of Rome (Italian: Presa di Roma) occurred on 20 September 1870, as forces of the Kingdom of Italy took control of the city and of the Papal States. After a plebiscite held on 2 October 1870, Rome was officially made capital of Italy on 3 February 1871, completing the unification of Italy (Risorgimento). The capture of Rome by the Royal Italian Army brought an end to the Papal States, which had existed since the Donation of Pepin in 756, along with the temporal power of the Holy See, and led to the establishment of Rome as the capital of unified Italy. It is widely commemorated in Italy, especially in cathedral cities, by naming streets for the date: Via XX Settembre (spoken form: "Via Venti Settembre").

John Coleridge Patteson (1 April 1827 – 20 September 1871) was an English Anglican bishop, missionary to the South Sea Islands, and an accomplished linguist, learning 23 of the islands' more than 1,000 languages. In 1861, Patteson was selected as the first Bishop of the Anglican Church of Melanesia. He was killed on Nukapu, one of the easternmost islands of the Solomon Islands, on 20 September 1871. Consequently, he is commemorated in the Church of England calendar on 20 September.

Chester Alan Arthur (October 5, 1829 – November 18, 1886) was the 21st president of the United States, serving from 1881 to 1885. A Republican from New York, he served as the 20th vice president under President James A. Garfield in 1881, assuming the presidency after Garfield's assassination. Arthur's administration saw the largest expansion of the U.S. Navy, the end of the so-called "spoils system", and the implementation of harsher restrictions for migrants entering from abroad. Arthur was born in Fairfield, Vermont, and practiced law in New York City. He served as quartermaster general of the New York Militia during the American Civil War. Following the war, he devoted more time to New York Republican politics and quickly rose in Senator Roscoe Conkling's political organization. President Ulysses S. Grant appointed him as Collector of the Port of New York in 1871, and he was an important supporter of Conkling and the Stalwart faction of the Republican Party. In 1878, following bitter disputes between Conkling and President Rutherford B. Hayes over control of patronage in New York, Hayes fired Arthur as part of a plan to reform the federal patronage system. During the 1880 Republican National Convention, the extended contest between Grant, identified with the Stalwarts, and James G. Blaine, the candidate of the Half-Breed faction, led to the compromise selection of James Garfield as the nominee for president. Republicans then nominated Arthur for vice president to balance the ticket geographically and to placate Stalwarts disappointed by Grant's defeat. Garfield and Arthur won the 1880 presidential election and took office in March 1881. Four months into his term, Garfield was shot by an assassin; he died 11 weeks later, and Arthur assumed the presidency. As president, Arthur presided over the rebirth of the U.S. Navy, but he was criticized for failing to alleviate the federal budget surplus which had been accumulating since the end of the Civil War. Arthur vetoed the first version of the 1882 Chinese Exclusion Act, arguing that its twenty-year ban on Chinese immigrants to the United States violated the Burlingame Treaty, but he signed a second version, which included a ten-year ban. He appointed Horace Gray and Samuel Blatchford to the Supreme Court. He also enforced the Immigration Act of 1882 to impose more restrictions on immigrants and the Tariff of 1883 to attempt to reduce tariffs. Arthur signed into law the Pendleton Civil Service Reform Act of 1883, which came as a surprise to reformers who held a negative opinion of Arthur as a Stalwart and product of Conkling's organization. Suffering from poor health, Arthur made only a limited effort to secure the Republican Party's nomination in 1884, and he retired at the end of his term. Arthur's failing health and political temperament combined to make his administration less active than a modern presidency, yet he earned praise among contemporaries for his solid performance in office.

Charles Edgar Duryea (December 15, 1861 – September 28, 1938) was an American engineer. He was the engineer of the second working American gasoline-powered car and co-founder of Duryea Motor Wagon Company. He was born near Canton, Illinois, a son of George Washington Duryea and Louisa Melvina Turner, and died in Philadelphia, Pennsylvania, but spent most of his life working in Springfield, Massachusetts.

RMS Olympic was a British ocean liner and the lead ship of the White Star Line's trio of Olympic-class liners. Olympic had a career spanning 24 years from 1911 to 1935, in contrast to her short-lived sister ships, RMS Titanic and the Royal Navy hospital ship HMHS Britannic. This included service as a troopship with the name HMT Olympic during the First World War, which gained her the nickname "Old Reliable", and during which she rammed and sank the U-boat U-103. She returned to civilian service after the war and served successfully as an ocean liner throughout the 1920s and into the first half of the 1930s, although increased competition, and the slump in trade during the Great Depression after 1930, made her operation increasingly unprofitable. Olympic was withdrawn from service on 12 April 1935, and later sold for scrap, which was completed by 1939. Olympic was the largest ocean liner in the world for two periods during 1910–13, interrupted only by the brief service life (six-day maiden voyage in April 1912) of the slightly larger Titanic, which had the same dimensions but higher gross register tonnage, before the German SS Imperator went into service in June 1913. Olympic also held the title of the largest British-built liner until RMS Queen Mary was launched in 1934, interrupted only by the short career of Titanic; Britannic, intended as a liner, instead served as a Royal Navy hospital ship for her 11-month life (December 1915 to November 1916), sinking when she struck a mine.

The Irish War of Independence, also known as the Anglo-Irish War or the Tan War, was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army and British forces: the British Army, along with the quasi-military Royal Irish Constabulary (RIC) and its paramilitary forces the Auxiliaries and Ulster Special Constabulary (USC). It was part of the Irish revolutionary period.

The Holocaust resulted in the near total eradication of Lithuanian (Litvaks) and Polish Jews[a] in Generalbezirk Litauen of the Reichskommissariat Ostland in the Nazi-controlled Lithuania. Of approximately 208,000–210,000 Jews at the time of the Nazi invasion, an estimated 190,000 to 195,000 were killed before the end of World War II, most of them between June and December 1941. This genocide would also mark the beginning of Hitler's Final Solution. More than 95% of Lithuania's Jewish population was murdered over the three-year German occupation, a more complete destruction than befell any other country in the Holocaust. Historians attribute this to the massive collaboration in the genocide by the non-Jewish local paramilitaries, though the reasons for this collaboration are still debated. The Holocaust resulted in the largest loss of life in so short a period of time in the history of Lithuania. The events in the western regions of the USSR occupied by Nazi Germany in the first weeks after the German invasion, including Lithuania, marked a sharp intensification of the Holocaust.[b] The occupying Nazi German administration fanned antisemitism by blaming the Soviet regime's annexation of Lithuania in June 1940, on the Jewish community. One prevalent antisemitic trope at the time linked Bolsheviks and Jews. There were other tropes, even more unpleasant. To a large extent the Nazis also relied on the physical preparation and execution of their orders by local Lithuanian collaborators. As of 2020, the topic of the Holocaust in Lithuania and the role played by Lithuanians in the genocide, including several notable Lithuanian nationalists, remained unsettled.

The Cannes Film Festival is considered the most prestigious film festival in the world. Held in Cannes, France, it previews new films of all genres, including documentaries. Founded in 1946, the invitation-only festival is held annually (usually in May) at the Palais des Festivals et des Congrès. The festival was formally accredited by the FIAPF in 1951. Cannes is considered one of the "Big Three" European film festivals, alongside Venice and Berlin, as well as one of the "Big Five" international film festivals, alongside Venice, Berlin, Toronto and Sundance.

An independence referendum was held in the Faroe Islands, an autonomous territory of the Kingdom of Denmark, on 14 September 1946. Although a narrow majority of valid votes were cast in favour of the proposal (50.7%), the number of invalid votes exceeded the winning margin. Although independence was declared by the Speaker of the Løgting on 18 September 1946, the declaration was not recognised by Denmark. King Christian X of Denmark dissolved the Løgting and called fresh elections, which were won by unionist parties. The islands were subsequently given a greater level of self-rule.

Moomin (Swedish: Mumin / Mumintrollen; Finnish: Muumipeikko) is a comic strip created by Swedish-speaking Finnish writer and artist Tove Jansson, and followed up by her younger brother Lars Jansson, featuring their Moomin family of characters. The first comic strip, entitled Mumintrollet och jordens undergång (Moomintroll and The End of The World) was for the Finland newspaper Ny Tid. It was written between 1947 and 1948, at the request of the editor, a friend of Jansson's, Atos Wirtanen. The series was mainly an adaptation of Comet in Moominland. The main series of Moomin comic strips was made directly for the British market: they were distributed by the Associated Newspapers comic strip syndicate, initially appearing in London's Evening News newspaper. The series was printed in newspapers from 1954 to 1971. At its peak, Moomin appeared in around 40 countries and some 120 newspapers, with over 20 million readers daily. The original comic strip stories by Tove Jansson and Lars Jansson have been adapted into the Moomin (1990) anime series and the 2014 animated film based on Moomin on the Riviera comic strip story. Tove and Lars Jansson received the Finnish Comics Society's Puupää's Hat award in 1980.

Konstantinos Dovas (Greek: Κωνσταντίνος Δόβας; 20 December 1898 – 24 July 1973) was a Greek general and interim Prime Minister. Dovas was born in Konitsa, in the Janina Vilayet of the Ottoman Empire (present-day northwestern Greece). In 1918, Dovas graduated from the Hellenic Military Academy. During the Greek Civil War between the government and the communist Democratic Army of Greece, he led the resistance of the Konitsa garrison during the Battle of Konitsa. Subsequently, he rose from the rank of Lieutenant General (1954) to Chief of the Hellenic National Defense General Staff. During his term of office, on 25 March 1955 an agreement between the Army and the CIA on the establishment of a special force entitled "Sheepskin" was made, which subsequently became the Greek component of Gladio, a secret organisation of NATO, CIA and MI6. After his retirement from the army, he was Chief of the Royal Household of King Paul of Greece. From 20 September to 4 November 1961, Dovas was prime minister in a transitional government. Following the 1967 coup d'etat, he was part of a failed counter-coup planned by King Constantine II.

James Howard Meredith is an American civil rights activist, writer, political adviser, and United States Air Force veteran who became, in 1962, the first African-American student admitted to the racially segregated University of Mississippi after the intervention of the federal government. Inspired by President John F. Kennedy's inaugural address, Meredith decided to exercise his constitutional rights and apply to the University of Mississippi. His goal was to put pressure on the Kennedy administration to enforce civil rights for African Americans. The admission of Meredith ignited the Ole Miss riot of 1962 where Meredith's life was threatened and 31,000 American servicemen were required to quell the violence – the largest ever invocation of the Insurrection Act of 1807.

Queen Elizabeth 2 (QE2) is a retired British ocean liner. Built by John Brown & Company on the River Clyde in Scotland for the Cunard Line, the ship was operated as a transatlantic liner and cruise ship from 1969 to 2008. She was laid up until converted into a floating hotel in Dubai.

Hurricane Irene–Olivia was the first actively tracked tropical cyclone to move into the eastern Pacific Ocean from the Atlantic basin. It originated as a tropical depression on September 11, 1971, in the tropical Atlantic. The cyclone tracked nearly due westward at a low latitude, passing through the southern Windward Islands and later over northern South America. In the southwest Caribbean Sea, it intensified to a tropical storm and later a hurricane. Irene made landfall on southeastern Nicaragua on September 19, and maintained its circulation as it crossed the low-lying terrain of the country. Restrengthening after reaching the Pacific, Irene was renamed Hurricane Olivia, which ultimately attained peak winds of 125 mph (201 km/h). Olivia weakened significantly before moving ashore on the Baja California Peninsula on September 30; the next day it dissipated.

Billie Jean King is an American former world No. 1 tennis player. King won 39 Grand Slam titles: 12 in singles, 16 in women's doubles, and 11 in mixed doubles. She was a member of the victorious United States team in seven Federation Cups and nine Wightman Cups.

James Joseph Croce was an American folk and rock singer-songwriter. Between 1966 and 1973, he released five studio albums and numerous singles. During this period, Croce took a series of odd jobs to pay bills while he continued to write and record songs as well as perform concerts. After Croce formed a partnership with songwriter and guitarist Maury Muehleisen in the early 1970s, his fortunes turned. Croce's breakthrough came in 1972, when his third album, You Don't Mess Around with Jim, produced three charting singles, including "Time in a Bottle", which reached number one after his death. The follow-up album Life and Times included the song "Bad, Bad Leroy Brown", the only number-one hit Croce had during his lifetime.

Vietnam, officially the Socialist Republic of Viet Nam (SRV), is a country at the eastern edge of Mainland Southeast Asia. With an area of about 331,000 square kilometres and a population of over 102 million, it is the world's 16th-most populous country. One of two communist states in Southeast Asia, Vietnam is bordered by China to the north, and Laos and Cambodia to the west; it lies along the Gulf of Thailand to the southwest and the South China Sea to the east, where it has shared and disputed maritime borders with other countries. Its capital is Hanoi, while its largest city is Ho Chi Minh City.

The 1982 NFL season was the 63rd regular season of the National Football League. A 57-day-long players' strike reduced the 1982 season from a 16-game schedule per team to an abbreviated nine-game schedule. Because of the shortened season, the NFL adopted a special 16-team playoff tournament; division standings were ignored for seeding. Eight teams from each conference were seeded 1–8 based on their regular season records. Two teams qualified for the playoffs despite losing records. The season ended with Super Bowl XVII when the Washington Redskins defeated the Miami Dolphins 27–17 at the Rose Bowl.

On September 20, 1984, the Shi'a Islamic militant group Hezbollah, with support and direction from the Islamic Republic of Iran, carried out a suicide car bombing targeting the US embassy annex in East Beirut, Lebanon during the Lebanese Civil War. The attack killed 23 people and 1 attacker.

Aeroflot Flight 36075, known also as Tu-134 hijacking in Ufa, was an aircraft hijacking committed by two deserting Internal Troops soldiers on September 20, 1986, at the Ufa International Airport. Three soldiers of the Internal Troops of the Ministry of Internal Affairs, Junior Sergeant Nikolai Matsnev, Private Sergei Yagmurdzhi and Private Aleksandr Konoval, stole a taxi early in the morning, shooting two policemen along the way. Konoval escaped after killing the policemen and was later arrested, while Matsnev and Yagmurdzhi, having reached the airport, stormed aboard a Tupolev Tu-134 and took 81 people hostage. Two hostages were shot dead immediately after the hijacking. The criminals demanded that the plane be sent abroad to any country unfriendly to the Soviet Union, threatening to shoot the hostages. Alpha Group of the 7th Directorate of the KGB was called in to free the hostages, which stormed the plane after lengthy negotiations to free the hostages. Matsnev died in the ensuing shootout, and Yagmurdzhi was wounded in the leg. Flight attendants Elena Zhukovskaya and Susanna Zhabinets played an important role in rescuing the passengers, convincing both soldiers to release all the hostages.

Margaret Hilda Thatcher, Baroness Thatcher was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century and the first woman to hold the office. As prime minister, she implemented policies that came to be known as Thatcherism. A Soviet journalist dubbed her the "Iron Lady", a nickname that became associated with her uncompromising politics and leadership style.

USAir Flight 5050 was a passenger flight that crashed on takeoff from LaGuardia Airport in Queens, New York. As the Boeing 737-400 took off from LaGuardia's runway 31, the plane drifted to the left. After hearing a loud bang, the pilots attempted to reject the takeoff, but were unable to stop the plane short of the end of the runway. The plane continued past the end of the runway and plunged into Bowery Bay. Two passengers were killed.

South Ossetia, formally the State of Alania since 2017, and originally the Republic of South Ossetia, is a partially recognised state in the South Caucasus. It has an officially stated population of just over 56,500 people (2022), who live in an area of 3,900 square kilometres (1,500 sq mi), with 33,000 living in the capital city, Tskhinvali. It de facto borders only Russia and Georgia.

The war on terror, officially the Global War on Terrorism (GWOT), is a global military campaign initiated by the United States in response to the September 11 attacks in 2001. A global conflict spanning multiple wars, some researchers and political scientists have argued that it replaced the Cold War.

On Saturday September 20, 2003 civil unrest broke out in Malé, the capital city of the Maldives. This unrest was provoked by the death of Hassan Evan Naseem at Maafushi Prison – located on a separate inhabited island – and the subsequent shooting at the same prison, that killed 3 and injured 17 others.

The Islamabad Marriott Hotel bombing occurred on the night of 20 September 2008, when a dumper truck filled with explosives was detonated in front of the Marriott Hotel in the Pakistani capital Islamabad, killing at least 54 people, injuring at least 266 and leaving a 60 ft (18 m) wide, 20 ft (6.1 m) deep crater outside the hotel. The majority of the casualties were Pakistanis; at least five foreign nationals were also killed and fifteen others reported injured. The attack occurred only hours after President Asif Ali Zardari made his first speech to the Pakistani parliament. The Marriott was the most prestigious hotel in the capital, and was located near government buildings, diplomatic missions, embassies and high commissions.

"Don't ask, don't tell" (DADT) was the official United States policy on military service of homosexual people for a period of over 17 years, starting in the mid-1990s. Instituted during the presidency of Bill Clinton, the policy was issued under Department of Defense Directive 1304.26 on December 21, 1993, and was in effect from February 28, 1994, until September 20, 2011. The policy prohibited military personnel from discriminating against or harassing closeted homosexual or bisexual service members or applicants, while barring openly gay, lesbian, or bisexual persons from military service. This relaxation of legal restrictions on service by gays, lesbians, and bisexuals in the armed forces was mandated by Public Law 103–160, which was signed November 30, 1993. The policy prohibited people who "demonstrate a propensity or intent to engage in homosexual acts" from serving in the United States Armed Forces, because their presence "would create an unacceptable risk to the high standards of morale, good order and discipline, and unit cohesion that are the essence of military capability".

Hurricane Maria was an extremely powerful and catastrophic tropical cyclone that affected the northeastern Caribbean in September 2017, particularly in the U.S. territory of Puerto Rico, which accounted for 2,975 of the 3,059 deaths. It is the deadliest and costliest hurricane to strike the archipelago and island of Puerto Rico, and is the deadliest hurricane to strike the country of Dominica and the territory of the U.S. Virgin Islands. The most intense tropical cyclone worldwide in 2017, Maria was the thirteenth named storm, eighth consecutive hurricane, fourth major hurricane, second Category 5 hurricane, and deadliest storm of the extremely active 2017 Atlantic hurricane season. With over 3,000 deaths and a minimum central pressure of 908 millibars (26.8 inHg), Maria was the twelfth most intense Atlantic hurricane on record, respectively. Total monetary losses are estimated at upwards of $91.61 billion, almost all of which came from Puerto Rico, ranking it as the fourth-costliest tropical cyclone on record.

MV Nyerere was a Tanzanian ferry that capsized on 20 September 2018 while travelling between the islands of Ukerewe and Ukara on Lake Victoria. The Tanzanian government have declared that 228 people died as a result of the capsizing while 41 could be rescued. The capsized ferry was successfully righted, retrieved and unloaded more than one week after the disaster.

The September 2019 climate strikes, also known as the Global Week for Future, were a series of international strikes and protests to demand action be taken to address climate change, which took place from 20 to 27 September 2019. The strikes' key dates were 20 September, which was three days before the United Nations Climate Summit, and 27 September. The protests took place across 4,500 locations in 150 countries. The event stemmed from the Fridays for Future school strike for climate movement, inspired by Swedish climate activist Greta Thunberg. The Guardian reported that roughly 6 million people participated in the events, whilst 350.org – a group that organised many of the protests – claim that 7.6 million people participated.