Portal:History

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The History Portal

Herodotus (c. 484 BC – c. 425 BC) is often
considered the "father of history"

History is the systematic study of the past, focusing primarily on the human past. As an academic discipline, it analyzes and interprets evidence to construct narratives about what happened and explain why it happened. Some theorists categorize history as a social science, while others see it as part of the humanities or consider it a hybrid discipline. Similar debates surround the purpose of history—for example, whether its main aim is theoretical, to uncover the truth, or practical, to learn lessons from the past. In a more general sense, the term history refers not to an academic field but to the past itself, times in the past, or to individual texts about the past.

Historical research relies on primary and secondary sources to reconstruct past events and validate interpretations. Source criticism is used to evaluate these sources, assessing their authenticity, content, and reliability. Historians integrate the perspectives of several individual sources to develop a coherent narrative. Different schools of thought, such as positivism, the Annales school, Marxism, and postmodernism, have distinct methodological approaches.

History is a broad discipline encompassing many branches. Some focus on specific time periods, such as ancient history, while others concentrate on particular geographic regions, such as the history of Africa. Thematic categorizations include political history, military history, social history, and economic history. Branches associated with specific research methods and sources include quantitative history, comparative history, and oral history.

History emerged as a field of inquiry in antiquity to replace myth-infused narratives, with influential early traditions originating in Greece, China, and later in the Islamic world. Historical writing evolved throughout the ages and became increasingly professional, particularly during the 19th century, when a rigorous methodology and various academic institutions were established. History is related to many fields, including historiography, philosophy, education, and politics. (Full article...)

Featured articles –

Featured articles are displayed here, which represent some of the best content on English Wikipedia.

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  Silver penny of Wiglaf, struck 827–829.
  Legend: + vviglaf rex m

  
  Wiglaf (died 839) was King of Mercia from 827 to 829 and again from 830 until his death in 839. His ancestry is uncertain: the 820s were a period of dynastic conflict within Mercia and the genealogy of several of the kings of this time is unknown. Wigstan, his grandson, was later recorded as a descendant of Penda of Mercia, so it is possible that Wiglaf was descended from Penda, one of the most powerful seventh-century kings of Mercia.
  
  Wiglaf succeeded Ludeca, who was killed campaigning against East Anglia. His first reign coincided with the continued rise of the rival Anglo-Saxon kingdom of Wessex under Ecgberht. Ecgberht drove Wiglaf from the throne in 829, and ruled Mercia directly for a year. Wiglaf recovered the kingdom in 830, probably by force, although it may be that Wiglaf remained subject to Ecgberht's overlordship. Mercia never regained the south-eastern kingdoms, but Berkshire and perhaps Essex came back into Mercian control. The causes of the fluctuating fortunes of Mercia and Wessex are a matter of speculation, but it may be that Carolingian support influenced both Ecgberht's ascendancy and the subsequent Mercian recovery. Although Wiglaf appeared to have restored Mercia's independence, the recovery was short-lived, and later in the century Mercia was divided between Wessex and the Vikings. (Full article...)
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  Joshua Reynolds' Puck (1789), painted for Boydell's Shakespeare Gallery, is modelled after Parmigianino's Madonna with St. Zachary, the Magdalen, and St. John

  
  
  The Boydell Shakespeare Gallery in London, England, was the first stage of a three-part project initiated in November 1786 by engraver and publisher John Boydell in an effort to foster a school of British history painting. In addition to the establishment of the gallery, Boydell planned to produce an illustrated edition of William Shakespeare's plays and a folio of prints based upon a series of paintings by different contemporary painters. During the 1790s the London gallery that showed the original paintings emerged as the project's most popular element.
  
  The works of William Shakespeare enjoyed a renewed popularity in 18th-century Britain. Several new editions of his works were published, his plays were revived in the theatre and numerous works of art were created illustrating the plays and specific productions of them. Capitalising on this interest, Boydell decided to publish a grand illustrated edition of Shakespeare's plays that would showcase the talents of British painters and engravers. He chose the noted scholar and Shakespeare editor George Steevens to oversee the edition, which was released between 1791 and 1803. (Full article...)
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  Buzz Aldrin on the Moon in a photograph taken by Neil Armstrong, who can be seen in the visor reflection along with Earth, the Lunar Module Eagle, and the U.S. flag.

  
  Apollo 11 was a spaceflight conducted from July 16 to 24, 1969, by the United States and launched by NASA. It marked the first time that humans landed on the Moon. Commander Neil Armstrong and Lunar Module Pilot Buzz Aldrin landed the Apollo Lunar Module Eagle on July 20, 1969, at 20:17 UTC, and Armstrong became the first person to step onto the Moon's surface six hours and 39 minutes later, on July 21 at 02:56 UTC. Aldrin joined him 19 minutes later, and they spent about two and a quarter hours together exploring the site they had named Tranquility Base upon landing. Armstrong and Aldrin collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth as pilot Michael Collins flew the Command Module Columbia in lunar orbit, and were on the Moon's surface for 21 hours, 36 minutes, before lifting off to rejoin Columbia.
  
  Apollo 11 was launched by a Saturn V rocket from Kennedy Space Center on Merritt Island, Florida, on July 16 at 13:32 UTC. It was the fifth crewed mission of NASA's Apollo program. The Apollo spacecraft had three parts: a command module (CM) with a cabin for the three astronauts, the only part that returned to Earth; a service module (SM), which supported the command module with propulsion, electrical power, oxygen, and water; and a lunar module (LM) that had two stages—a descent stage for landing on the Moon and an ascent stage to place the astronauts back into lunar orbit. (Full article...)
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  Arab-Sasanian dirham of Yazid I, struck at the Basra mint, dated AH 61 (680/1 CE), the year in which the Battle of Karbala occurred.

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  The obverse side shows the portrait of the Sasanian shah Khosrow II (r. 590–628) and his name in the Pahlavi script.

  
  Yazid ibn Mu'awiya ibn Abi Sufyan (Arabic: يزيد بن معاوية بن أبي سفيان, romanized: Yazīd ibn Muʿāwiya ibn ʾAbī Sufyān; c. 646 – 11 November 683), commonly known as Yazid I, was the second caliph of the Umayyad Caliphate, ruling from April 680 until his death in November 683. His appointment by his father Mu'awiya I (r. 661–680) was the first hereditary succession to the caliphate in Islamic history. His caliphate was marked by the death of Muhammad's grandson Husayn ibn Ali and the start of the crisis known as the Second Fitna.
  
  During his father's caliphate, Yazid led several campaigns against the Byzantine Empire, including an attack on the Byzantine capital, Constantinople. Yazid's nomination as heir apparent in 676 CE (56 AH) by Mu'awiya was opposed by several Muslim grandees from the Hejaz region, including Husayn and Abd Allah ibn al-Zubayr. The two men refused to recognize Yazid following his accession and took sanctuary in Mecca. When Husayn left for Kufa in Iraq to lead a revolt against Yazid, he was killed with his small band of supporters by Yazid's forces in the Battle of Karbala. Husayn's death caused resentment in the Hejaz, where Ibn al-Zubayr called for a consultative assembly to elect a new caliph. The people of Medina, who supported Ibn al-Zubayr, held other grievances toward the Umayyads. After failing to gain the allegiance of Ibn al-Zubayr and the people of the Hejaz through diplomacy, Yazid sent an army to suppress their rebellion. The army defeated the Medinese in the Battle of al-Harra in August 683 and the city was sacked. Afterward, Mecca was besieged for several weeks until the army withdrew as a result of Yazid's death in November 683. The Caliphate fell into a nearly decade-long civil war, ending with the establishment of the Marwanid dynasty (the Umayyad caliph Marwan I and his descendants). (Full article...)
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  SMS Bodrog on the Danube river in 1914

  
  The Yugoslav monitor Sava is a Temes-class river monitor that was built for the Austro-Hungarian Navy as SMS Bodrog. She fired the first shots of World War I just after 01:00 on 29 July 1914, when she and two other monitors shelled Serbian defences near Belgrade. She was part of the Danube Flotilla, and fought the Serbian and Romanian armies from Belgrade to the mouth of the Danube. In the closing stages of the war, she was the last monitor to withdraw towards Budapest, but was captured by the Serbs when she grounded on a sandbank downstream from Belgrade. After the war, she was transferred to the newly created Kingdom of Serbs, Croats and Slovenes (later Yugoslavia), and renamed Sava. She remained in service throughout the interwar period, although budget restrictions meant she was not always in full commission.
  
  During the German-led Axis invasion of Yugoslavia in April 1941, Sava served with the 1st Monitor Division. Along with her fellow monitor Vardar, she laid mines in the Danube near the Romanian border during the first few days of the invasion. The two monitors fought off several attacks by the Luftwaffe, but were forced to withdraw to Belgrade. Due to high river levels and low bridges, navigation was difficult, and Sava was scuttled on 11 April. Some of her crew tried to escape cross-country towards the southern Adriatic coast, but all were captured prior to the Yugoslav surrender. The vessel was later raised by the navy of the Axis puppet state known as the Independent State of Croatia and continued to serve as Sava until the night of 8 September 1944 when she was again scuttled. (Full article...)
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  Air Commodore Hewitt, 1942

  
  Air Vice-Marshal Joseph Eric Hewitt, CBE (13 April 1901 – 1 November 1985) was a senior commander in the Royal Australian Air Force (RAAF). He joined the Royal Australian Navy in 1915, and transferred permanently to the Air Force in 1928. Hewitt commanded No. 101 (Fleet Cooperation) Flight in the early 1930s, and No. 104 (Bomber) Squadron RAF on exchange in Britain shortly before World War II. He was appointed the RAAF's Assistant Chief of the Air Staff in 1941. The following year he was posted to Allied Air Forces Headquarters, South West Pacific Area, as Director of Intelligence. In 1943, he took command of No. 9 Operational Group, the RAAF's main mobile strike force, but was controversially sacked by the Chief of the Air Staff, Air Vice Marshal George Jones, less than a year later over alleged morale and disciplinary issues.
  
  Described as a "small, dapper man", who was "outspoken, even 'cocky'", Hewitt overcame the setback to his career during the war and made his most significant contributions as Air Member for Personnel from 1945 to 1948. Directly responsible for the demobilisation of thousands of wartime staff and the consolidation of what was then the world's fourth largest air force into a much smaller peacetime service, he also helped modernise education and training within the RAAF. Hewitt was appointed a Commander of the Order of the British Empire in 1951, the same year he became Air Member for Supply and Equipment. Retiring from the military in 1956, he went into business and later managed his own publishing house. He wrote two books including Adversity in Success, a first-hand account of the South West Pacific air war, before his death in 1985 aged 84. (Full article...)
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  Chadwick, c. 1945

  
  Sir James Chadwick (20 October 1891 – 24 July 1974) was an English physicist who received the Nobel Prize in Physics in 1935 for his discovery of the neutron. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atom bomb research efforts. He was the head of the British team that worked on the Manhattan Project during World War II. He was knighted in Britain in 1945 for his achievements in physics.
  
  Chadwick graduated from the Victoria University of Manchester in 1911, where he studied under Ernest Rutherford (known as the "father of nuclear physics"). At Manchester, he continued to study under Rutherford until he was awarded his MSc in 1913. The same year, Chadwick was awarded an 1851 Research Fellowship from the Royal Commission for the Exhibition of 1851. He elected to study beta radiation under Hans Geiger in Berlin. Using Geiger's recently developed Geiger counter, Chadwick was able to demonstrate that beta radiation produced a continuous spectrum, and not discrete lines as had been thought. Still in Germany when World War I broke out in Europe, he spent the next four years in the Ruhleben internment camp. (Full article...)
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  Topographic map of Switzerland highlighting the location of the battle

  
  The Battle of Winterthur (27 May 1799) was an important action between elements of the Army of the Danube and elements of the Habsburg army, commanded by Friedrich Freiherr von Hotze, during the War of the Second Coalition, part of the French Revolutionary Wars. The small town of Winterthur lies 18 kilometers (11 mi) northeast of Zürich, in Switzerland. Because of its position at the junction of seven roads, the army that held the town controlled access to most of Switzerland and points crossing the Rhine into southern Germany. Although the forces involved were small, the ability of the Austrians to sustain their 11-hour assault on the French line resulted in the consolidation of three Austrian forces on the plateau north of Zürich, leading to the French defeat a few days later.
  
  By mid-May 1799, the Austrians had wrested control of parts of Switzerland from the French as forces under the command of Hotze and Count Heinrich von Bellegarde pushed them out of the Grisons. After defeating Jean-Baptiste Jourdan's 25,000-man Army of the Danube at the battles of Ostrach and Stockach, the main Austrian army, under command of Archduke Charles, crossed the Rhine at the Swiss town of Schaffhausen and prepared to unite with the armies of Hotze and Friedrich Joseph, Count of Nauendorf, on the plains surrounding Zürich. (Full article...)
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  Abu Abdullah Muhammad ibn Ismail (Arabic: أبو عبد الله محمد الرابع), also known as Muhammad IV (14 April 1315 – 25 August 1333), was the ruler of the Emirate of Granada on the Iberian Peninsula from 1325 to 1333. He was the sixth sultan of the Nasrid dynasty, succeeding to the throne at ten years old when his father, Ismail I (r. 1314–1325), was assassinated.
  
  The initial years of his reign were marked by conflict among his ministers, who vied for control of the young sultan's government. This escalated into a civil war between the party of the vizier Muhammad ibn al-Mahruq and that of the powerful commander of the Volunteers of the Faith, Uthman ibn Abi al-Ula. Uthman declared Muhammad's uncle, Muhammad ibn Faraj, as a rival sultan and secured support from Alfonso XI of Castile (r. 1312–1350), Granada's Christian neighbour to the north. Muhammad IV requested help from Abu Said Uthman II (r. 1310–1331) of the Marinid Sultanate in Morocco and gave him territories in the Iberian Peninsula, including Ronda, Marbella, and Algeciras, probably in exchange for Marinid troops. The civil war ended in 1328 when Muhammad, who despite his youth had begun taking a more active role in government, reconciled with Uthman ibn Abi al-Ula, and ordered Ibn al-Mahruq assassinated; the pretender Muhammad ibn Faraj was sent to North Africa. In 1329 he appointed his childhood tutor Abu Nuaym Ridwan as the hajib (chamberlain), outranking his other ministers; this was the first time the title appeared in the Emirate of Granada. (Full article...)
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  The Air Board, also known as the Administrative Air Board, or the Air Board of Administration, was the controlling body of the Royal Australian Air Force (RAAF) from 1921 to 1976. It was composed of senior RAAF officers as well as some civilian members, and chaired by the Chief of the Air Staff (CAS). The CAS was the operational head of the Air Force, and the other board members were responsible for specific areas of the service such as personnel, supply, engineering, and finance. Originally based in Melbourne, the board relocated to Canberra in 1961.
  
  Formed in November 1920, the Air Board's first task was to establish the air force that it was to administer; this took place in March 1921. The board was initially responsible to the Australian Air Council, which included the chiefs of the Army and Navy; after the council's dissolution in 1929 the Air Board had equal status with the other service boards, reporting directly to the Minister for Defence. In 1939, shortly after the outbreak of World War II, the Department of Defence was split and the Air Board came under the purview of the newly created Department of Air, headed by the Minister for Air. In 1973 the service departments merged into a new Department of Defence and the board again reported to the Minister for Defence. (Full article...)
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  A Japanese Ko-hyoteki class midget submarine, believed to be midget No. 14, is raised from Sydney Harbour the day after the attack.

  
  From 31 May to 8 June 1942, during World War II, Imperial Japanese Navy submarines made a series of attacks on the Australian cities of Sydney and Newcastle. On the night of 31 May – 1 June, three Ko-hyoteki-class midget submarines (M-14, M-21 and M-24), each with a two-member crew, entered Sydney Harbour, avoided the partially constructed Sydney Harbour anti-submarine boom net, and attempted to sink Allied warships. Two of the midget submarines were detected and attacked before they could engage any Allied vessels. The crew of M-14 scuttled their submarine, whilst M-21 was successfully attacked and sunk. The crew of M-21 killed themselves. These submarines were later recovered by the Allies. The third submarine attempted to torpedo the heavy cruiser USS Chicago, but instead sank the converted ferry HMAS Kuttabul, killing 21 sailors. This midget submarine's fate was unknown until 2006, when amateur scuba divers discovered the wreck off Sydney's northern beaches.
  
  Immediately following the raid, the five Japanese fleet submarines that carried the midget submarines to Australia embarked on a campaign to disrupt merchant shipping in eastern Australian waters. Over the next month, the submarines attacked at least seven merchant vessels, sinking three ships and killing 50 sailors. During this period, between midnight and 02:30 on 8 June, two of the submarines bombarded the ports of Sydney and Newcastle. (Full article...)
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  Paul Kagame (left) and Juvénal Habyarimana (right), leaders of the RPF and Rwandan Government forces, respectively, for most of the war.

  
  The Rwandan Civil War was a large-scale civil war in Rwanda which was fought between the Rwandan Armed Forces, representing the country's government, and the rebel Rwandan Patriotic Front (RPF) from 1 October 1990 to 18 July 1994. The war arose from the long-running dispute between the Hutu and Tutsi groups within the Rwandan population. The Rwandan Revolution, which broke out in 1959, had replaced the Tutsi monarchy with a Hutu-led republic, forcing more than 336,000 Tutsis to seek refuge in neighbouring countries. A group of these refugees in Uganda founded the RPF which, under the leadership of Fred Rwigyema and Paul Kagame, became a battle-ready army by the late 1980s.
  
  The war began on 1 October 1990, when the RPF invaded north-eastern Rwanda, advancing 60 km (37 mi) into the country. They suffered a major setback when Rwigyema was killed in action on the second day. The Rwandan Army, assisted by expeditionary troops from France, gained the upper hand and the RPF were largely defeated by the end of October. Kagame, who had been in the United States during the invasion, returned to take command. He withdrew troops to the Virunga Mountains for several months before attacking again. The RPF began an insurgency, which continued until mid-1992 with neither side able to gain the upper hand. A series of protests forced Rwandan President Juvénal Habyarimana to begin peace negotiations with the RPF and domestic opposition parties. Despite disruption and killings by Hutu Power, a group of extremists opposed to any deal, and a fresh RPF offensive in early 1993, the negotiations were successfully concluded with the signing of the Arusha Accords in August 1993. (Full article...)
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  The storming of Caen, depicted in a manuscript of Froissart's Chronicles

  
  The Battle of Caen was an assault conducted on 26 July 1346 by forces from the Kingdom of England, led by King Edward III, on the French-held town of Caen and Normandy as a part of the Hundred Years' War.
  
  The assault was part of the Chevauchée of Edward III, which had started a month earlier when the English landed in Normandy. The French failed to intercept the English transports at sea and were taken by surprise, with their main army of more than 15,000 men in Gascony. The English were virtually unopposed and devastated much of Normandy before assaulting Caen. Part of the English army, which consisted of 12,000–15,000, commanded by the Earls of Warwick and Northampton, prematurely attacked Caen. It was garrisoned by 1,000–1,500 soldiers, who were supplemented by an unknown, large number of armed townsmen, and commanded by Raoul, the Count of Eu, the Grand Constable of France. The town was captured in the first assault. More than 5,000 of the ordinary soldiers and townspeople were killed, and a few nobles were taken prisoner. The town was sacked for five days. (Full article...)
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  Gallaher in 1905 during the Originals' tour

  
  David Gallaher (30 October 1873 – 4 October 1917) was an Irish-born New Zealand rugby union footballer best remembered as the captain of the "Original All Blacks"—the 1905–06 New Zealand national team, the first representative New Zealand side to tour the British Isles. Under Gallaher's leadership the Originals won 34 out of 35 matches over the course of tour, including legs in France and North America; the New Zealanders scored 976 points and conceded only 59. Before returning home he co-wrote the classic rugby text The Complete Rugby Footballer with his vice-captain Billy Stead. Gallaher retired as a player after the 1905–06 tour and took up coaching and selecting; he was a selector for both Auckland and New Zealand for most of the following decade.
  
  Born in Ramelton, Ireland, Gallaher migrated to New Zealand with his family as a small child. After moving to Auckland, in 1895 he joined Ponsonby RFC and was selected for his province in 1896. In 1901–02 he served with the New Zealand Contingent in the Anglo–Boer War. He first appeared on the New Zealand national team for their unbeaten tour of Australia in 1903, and played in New Zealand's first ever Test match, against Australia in Sydney. The Originals Gallaher captained during 1905–06 helped to cement rugby as New Zealand's national sport, but he was relentlessly pilloried by the British press for his role as wing-forward. The use of a wing-forward, which critics felt was a tactic to deliberately obstruct opponents, contributed to decades of strain between the rugby authorities of New Zealand and the Home Nations; the International Rugby Football Board (IRFB) effectively outlawed the position in 1931. (Full article...)
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  Borman in 1964

  
  Frank Frederick Borman II (March 14, 1928 – November 7, 2023) was an American United States Air Force (USAF) colonel, aeronautical engineer, NASA astronaut, test pilot, and businessman. He was the commander of Apollo 8, the first mission to fly around the Moon, and together with crewmates Jim Lovell and William Anders, became the first of 24 humans to do so, for which he was awarded the Congressional Space Medal of Honor.
  
  Four days before he graduated with the West Point Class of 1950, in which he was ranked eighth out of 670, Borman was commissioned in the USAF. He qualified as a fighter pilot and served in the Philippines. He earned a Master of Science degree at Caltech in 1957, and then became an assistant professor of thermodynamics and fluid mechanics at West Point. In 1960, he was selected for Class 60-C at the USAF Experimental Flight Test Pilot School at Edwards Air Force Base in California and qualified as a test pilot. On graduation, he was accepted as one of five students in the first class at the Aerospace Research Pilot School. (Full article...)

Featured picture

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  The Rhodes Colossus

  Illustration: Edward Linley Sambourne

  The Rhodes Colossus is an iconic editorial cartoon of the Scramble for Africa period, depicting British colonialist Cecil John Rhodes as a giant standing over the continent, after his announcement of plans to extend an electrical telegraph line from Cape Town to Cairo. Rhodes is shown in a visual pun as the ancient Greek statue the Colossus of Rhodes, with his right foot in Cape Town and his left in Cairo, illustrating his broader "Cape to Cairo" concept for British domination of Africa.
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  Trinity nuclear test

  Photo credit: Berlyn Brixner

  The Trinity nuclear test explosion, .016 seconds after detonation. The fireball is about 200 metres (700 ft) wide. Conducted by the United States on July 16, 1945, at a location 35 miles (56 km) southeast of Socorro, New Mexico, on what is now White Sands Missile Range, Trinity was the first test of technology for a nuclear weapon.
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  Wilhelmina of the Netherlands

  Engraver: George J. Verbeck, after Thérèse van Duyl Schwarze
  Restoration: Lise Broer

  A 1901 etching of Queen Wilhelmina of the Netherlands, based on an 1898 painting of her in her coronation robe. Having assumed the throne at the age of ten after the death of her father, King William III, Wilhemina ruled for fifty-eight years (1890–1948), longer than any other Dutch monarch. In 1948 she abdicated in favor of her daughter Juliana, thereafter making few public appearances until the country was devastated by the North Sea flood of 1953.
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  Temple Square

  Photo: William Henry Jackson; restoration: Tom dl and Mmxx

  An 1899 photochrom showing Temple Square, a 10-acre (4.0 ha) complex located in the center of Salt Lake City, Utah, US. The location is owned by and serves as headquarters of the Church of Jesus Christ of Latter-day Saints and was selected by Church president Brigham Young in 1846. Temple Square is home to several buildings; depicted here are the Salt Lake Temple, Salt Lake Tabernacle and Salt Lake Assembly Hall.
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  Masada

  Photograph: Andrew Shiva

  An aerial view of Masada, an ancient fortification in the Southern District of Israel. Found atop an isolated rock plateau, it overlooks the Dead Sea. The first fortifications on the mountain were built by Alexander Jannaeus, and significantly strengthened by the Roman client king Herod between 37 and 31 BCE. During the First Jewish–Roman War of 66–73 CE, the fortress was besieged, falling only after the 960 Sicarii defending it committed mass suicide.
  
  Masada is among the more popular tourist attractions in Israel, and in 2001 it was made a UNESCO World Heritage Site.
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  The "Theatre" at Petra

  Photo: Douglas Perkins

  Petra is an archaeological site in Jordan, lying in a basin among the mountains which form the eastern flank of Wadi Araba, the great valley running from the Dead Sea to the Gulf of Aqaba. It is famous for having many stone structures carved into the rock.
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  Finnish markka

  Banknote credit: Bank of Finland; photographed by Andrew Shiva

  The Finnish markka was the currency of Finland from 1860 to 2002. The currency was divided into 100 pennies and was first introduced by the Bank of Finland to replace the Russian ruble at a rate of four markkaa to one ruble. The markka was replaced by the euro on 1 January 2002 and ceased to be legal tender on 28 February later that year.
  
  This picture shows a 20-markka banknote issued in 1862, as part of the first issue of markka banknotes (1860 to 1862), for the Grand Duchy of Finland, then an autonomous part of the Russian Empire; 1862 was also the first year of issue for this particular denomination. The banknote's obverse depicts the coat of arms of Finland on a Russian double-headed eagle, and was personally signed by the director and the cashier of the Bank of Finland. The text on the obverse is in Swedish, whereas the reverse is primarily in Russian and Finnish.
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  Warsaw Ghetto Uprising

  Photo credit: USHMM

  Jews captured by SS and SD troops during the suppression of the Warsaw Ghetto Uprising are forced to leave their shelter and march to the Umschlagplatz for deportation. The SD trooper pictured second from the right, is Josef Blösche, who was identified by Polish authorities using this photograph. Blösche was tried for war crimes in Erfurt, East Germany in 1969, sentenced to death and executed in July of that year.
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  Second Battle of Gaza

  Photo: American Colony, Jerusalem
  Restoration: Lise Broer/Fir0002

  Ottoman machine gun corps, before the Second Battle of Gaza, which took place on 19 April 1917. The First Battle of Gaza, just three weeks prior, had ended in defeat for the British Empire, and this second attempt to break through Turkish defenses was also unsuccessful. Six months later, on the third attempt, the Allied forces were finally able to break the Gaza–Beersheba line.
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  Alexander the Great

  Mosaic: Unknown

  Alexander the Great (356–323 BC), the King of Macedonia, as depicted in a detail from the Alexander Mosaic. Originally from the House of the Faun in Pompeii and dated to c. 100 BC, the mosaic depicts a battle between the armies of Alexander the Great and Darius III of Persia. It is believed to be a copy of an early 3rd century BC Hellenistic painting, probably by Philoxenos of Eretria. The whole mosaic measures 2.72 × 5.13 m (8 ft 11 in × 16 ft 9 in).
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  Army of the Republic of Vietnam

  Photo credit: J.F. Fitzpatrick, Jr., SPC5, U.S. Army Signal Corps

  This twelve-year old ARVN Airborne trooper poses with an M79 grenade launcher during a sweep through the devastated Plantation Road area after a day-long battle near Tan Son Nhut during the Vietnam War. The young soldier had been "adopted" by the US Army Airborne Division.
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  German occupation of Czechoslovakia

  Photo credit: Völkischer Beobachter

  A crying Sudeten woman salutes Adolf Hitler as German forces sweep into Czechoslovakia, October 1938. Originally published in the Völkischer Beobachter, it supposedly showed the intense emotions of joy which swept the populace as Hitler drove through the streets of Cheb, 99% of whose inhabitants were ardently pro-Nazi Sudeten Germans at the time. In contrast, when the photo was published in the U.S., it was captioned, "The tragedy of this Sudeten woman, unable to conceal her misery as she dutifully salutes the triumphant Hitler, is the tragedy of the silent millions who have been 'won over' to Hitlerism by the 'everlasting use' of ruthless force." It is unknown what the true circumstances surrounding the photo are.
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  Apollo 11

  Photograph credit: Neil Armstrong

  Apollo 11 was the fifth crewed mission of NASA's Apollo program. After launching from the Kennedy Space Center in Florida on July 16, 1969, commander Neil Armstrong and Apollo Lunar Module pilot Buzz Aldrin landed Eagle in Mare Tranquillitatis on July 20, at 20:17:40 UTC, while command module pilot Michael Collins remained on Columbia in lunar orbit. Armstrong was the first to exit the spacecraft, stepping onto the surface 6 hours and 39 minutes later, on July 21, at 02:56:15 UTC; nineteen minutes later, Aldrin joined him on extravehicular activity, which lasted 2 hours, 31 minutes and 40 seconds. Armstrong and Aldrin lifted off from Tranquility Base after almost 22 hours on the lunar surface and rejoined Collins in the command module, before splashing down in the Pacific Ocean on July 24.
  
  The mission was planned to the minute, with the majority of the photographic tasks performed by Armstrong with a single Hasselblad camera. Most of the photographs taken on the Moon that include an astronaut are of Aldrin; there are only five images of Armstrong partly shown or reflected, as in this photograph, with Armstrong and the lunar module reflected in Aldrin's helmet visor. "As the sequence of lunar operations evolved," Aldrin explained, "Neil had the camera most of the time [...] It wasn't until we were back on Earth and in the Lunar Receiving Laboratory looking over the pictures that we realized there were few pictures of Neil."
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  Events in ballooning

  Chromolithograph: Romanet & cie.

  A 19th-century set of ten cards depicting events in the history of ballooning and parachuting. These cards depict, from left to right:
  
  Top row:
  

  1. Joseph Louis Gay-Lussac and Jean-Baptiste Biot reaching an altitude of 4,000 metres (13,000 ft) (1804)
  2. André-Jacques Garnerin making a parachute descent in his gondola (1797)
  3. Louis-Sébastien Lenormand making the first witnessed parachute descent (1783)
  4. A series of fantastic flying machines dreamed up during the 18th century
  5. Use of balloons for reconnaissance during the Battle of Mainz (1795)

  
  Bottom row:
  

  1. The coronation balloon of Napoleon I (1804)
  2. The death of Sophie Blanchard (1819)
  3. Francesco Zambeccari and two companions adrift in the Adriatic Sea (1804)
  4. The death of Thomas Harris (1824)
  5. Francesco Arban is rescued by Italian fishermen (1846)

  
  
• 
  Dust Bowl

  Photo credit: Sloan, USDA

  Buried machinery in a barn lot, Dallas, South Dakota, United States, due to Dust Bowl conditions, May 1936. Dust storms from 1930–1939 caused major ecological and agricultural damage to American and Canadian prairie lands. This ecological disaster was a result of drought conditions coupled with decades of extensive farming using techniques that promoted erosion.
• 
  Astrolabe

  Photograph: Masoud Safarniya

  An Iranian astrolabe, handmade from brass by Jacopo Koushan in 2013. Astrolabes are elaborate inclinometers used by astronomers, navigators, and astrologers from classical antiquity, through the Islamic Golden Age and European Middle Ages, until the Renaissance. These could be used for a variety of purposes, including predicting the positions of the Sun, Moon, planets, and stars; determining local time given local latitude; surveying; triangulation; calculating the qibla; and finding the times for salat.
• 
  Cliff Palace

  Photo credit: Gustaf Nordenskiöld

  An 1891 photograph of Cliff Palace, the largest cliff dwelling—a structure built within caves and under outcroppings in cliffs—in North America, located in what is now Mesa Verde National Park, Colorado, USA. There are about 150 rooms in the 288 ft (88 m) long structure, although only 25 to 30 of those were used as living space by Ancient Pueblo peoples. it is estimated that the population of Cliff Palace was roughly 100–150 people.
• 
  Shiva

  Photo: Los Angeles County Museum of Art

  A Chola dynasty sculpture depicting Shiva. In Hinduism, Shiva is the deity of destruction and one of the most important gods; in this sculpture he is dancing as Nataraja, the divine dancer who unravels the world in preparation for it being remade by Brahma.

Did you know (auto generated)

• ... that BoysTown was reported as having the largest case of child abuse in Australia's history?
• ... that no one laughed at the worst joke in legal history?
• ... that the Otoskwin–Attawapiskat River Provincial Park, protecting the Otoskwin and Attawapiskat Rivers in Ontario, Canada, has archaeological and historical sites dating from 3000 BC to the 1800s?
• ... that historically, lichens like Umbilicaria torrefacta have been used to naturally dye traditional Scottish tartans and textiles?
• ... that archaeological excavations in the historic town of Kharayeb revealed a rural settlement with a complex system of cisterns and a Phoenician temple?
• ... that throughout the history of education in Wales, schools have been held in monastic settlements, cathedrals, residential houses, marketplaces, barns, churches, and village halls?

Featured biography –

This is a Featured article, which represents some of the best content on English Wikipedia.

---

Gold dinar of al-Mu'tadid, AH 285 (AD 892/3)

Abū al-ʿAbbās Aḥmad ibn Ṭalḥa ibn Jaʿfar ibn Muḥammad ibn Hārūn (Arabic: أبو العباس أحمد بن طلحة الموفق), 853/4 or 860/1 – 5 April 902, better known by his regnal name al-Muʿtaḍid bi-llāh (Arabic: المعتضد بالله, lit. 'Seeking Support in God'), was the caliph of the Abbasid Caliphate from 892 until his death in 902.

Al-Mu'tadid was the son of al-Muwaffaq, who was the regent and effective ruler of the Abbasid state during the reign of his brother, Caliph al-Mu'tamid. As a prince, the future al-Mu'tadid served under his father during various military campaigns, most notably in the suppression of the Zanj Rebellion, in which he played a major role. When al-Muwaffaq died in June 891 al-Mu'tadid succeeded him as regent. He quickly sidelined his cousin and heir-apparent al-Mufawwid; when al-Mu'tamid died in October 892, he succeeded to the throne. Like his father, al-Mu'tadid's power depended on his close relations with the army. These were first forged during the campaigns against the Zanj and were reinforced in later expeditions which the Caliph led in person: al-Mu'tadid would prove to be the most militarily active of all Abbasid caliphs. Through his energy and ability, he succeeded in restoring to the Abbasid state some of the power and provinces it had lost during the turmoil of the previous decades. (Full article...)

On this day

April 10

First-edition cover of The Great Gatsby

• 1809 – Napoleonic Wars: The War of the Fifth Coalition began with the Austrian invasion of Bavaria, then a client state of France.
• 1815 – Mount Tambora in Indonesia began the most powerful volcanic eruption in recorded history, killing at least 71,000 people and affecting temperatures worldwide.
• 1925 – The Great Gatsby (cover pictured), a novel by American author F. Scott Fitzgerald, was first published by Scribner's.
• 1970 – In the midst of business disagreements with his bandmates, Paul McCartney announced his departure from the Beatles.
• 2019 – Scientists from the Event Horizon Telescope project released the first image of the black hole at the center of the galaxy M87.

• Michael Tarchaniota Marullus (d. 1500)
• Samuel Hahnemann (b. 1755)
• Kishori Amonkar (b. 1932)

More anniversaries:

• April 9
• April 10
• April 11

Selected quote

Truth alone will endure, all the rest will be swept away before the tide of time. I must continue to bear testimony to truth even if I am forsaken by all. Mine may today be a voice in the wilderness, but it will be heard when all other voices are silenced, if it is the voice of Truth.

— Gandhi, Indian political and spiritual leader

Related portals

More Did you know...

• ... that in 1898, the United States government annexed the Kingdom of Hawaii despite protestation from Queen Liliuokalani (pictured)?
• ... that Jean Thurel was a soldier in the French Régiment de Touraine for more than 75 years?
• ... that the severed head of Julia Martha Thomas — murdered, boiled and dismembered by her maid in 1879 — was found next door to Sir David Attenborough's house in 2010?
• ... that the 18th-century Indian automaton Tipu's Tiger shows a near life-size European being mauled by a tiger, and emits wails and grunts as well as containing a pipe organ?
• ... that Svið, a traditional Icelandic dish, consists of a sheep's head that has been cut in half, singed, and boiled with the brain removed?
• ... that, despite overseeing the construction of the crematoria and gas chambers at Auschwitz, what specifically shocked SS-Obersturmführer Robert Mulka at the camp was his colleagues' dress sense?
• ... that Tsar Alexander II of Russia had a special crystal bottle of Roederer champagne made for the Three Emperors Dinner in 1867 so that he could admire the bubbles?
• ... that the Gudea cylinders are the longest literary composition ever found in the Sumerian language?

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