Portal:History

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The History Portal

History by Frederick Dielman

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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  Modern depiction (1876) by Jean Léon Gérôme of a chariot race in Rome's Circus Maximus, as if seen from the starting gate. The Palatine Hill and imperial palace are to the left.

  
  
  Chariot racing (Ancient Greek: ἁρματοδρομία, harmatodromía; Latin: ludi circenses) was one of the most popular ancient Greek, Roman, and Byzantine sports. In Greece, chariot racing played an essential role in aristocratic funeral games from a very early time. With the institution of formal races and permanent racetracks, chariot racing was adopted by many Greek states and their religious festivals. Horses and chariots were very costly. Their ownership was a preserve of the wealthiest aristocrats, whose reputations and status benefitted from offering such extravagant, exciting displays. Their successes could be further broadcast and celebrated through commissioned odes and other poetry.
  
  In standard Greek racing practise, each chariot held a single driver and was pulled by four horses, or sometimes two. Drivers and horses risked serious injury or death through collisions and crashes; this added to the excitement and interest for spectators. Most charioteers were slaves or contracted professionals. While records almost invariably credit victorious owners and their horses for winning, their drivers are often not mentioned at all. In the ancient Olympic Games, and other Panhellenic Games, chariot racing was one of the most important equestrian events, and could be watched by unmarried women. Married women were banned from watching any Olympic events but a Spartan noblewoman is known to have trained horse-teams for the Olympics and won two races, one of them as driver. (Full article...)
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  The Treaty of Guînes ([ɡin], gheen) was a draft settlement to end the Hundred Years' War, negotiated between England and France and signed at Guînes on 6 April 1354. The war had broken out in 1337 and was further aggravated in 1340 when the English king, Edward III, claimed the French throne. The war went badly for France: the French army was heavily defeated at the Battle of Crécy, and the French town of Calais was besieged and captured. With both sides exhausted, a truce was agreed that, despite being only fitfully observed, was repeatedly renewed.
  
  When English adventurers seized the strategically located town of Guînes in 1352, full-scale fighting broke out again. This did not go well for the French, as money and enthusiasm for the war ran out and state institutions ceased to function. Encouraged by the new pope, Innocent VI, negotiations for a permanent peace treaty opened at Guînes in early March 1353. These broke down, although a truce was again agreed and again not fully observed by either side. In early 1354 a faction in favour of peace with England gained influence in the French king's council. Negotiations were reopened and the English emissaries suggested that Edward would abandon his claim to the French throne in exchange for French territory. This was rapidly agreed and a draft treaty was formally signed on 6 April. (Full article...)
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  Officer Commanding No. 91 Wing, Group Captain Charlton (left), Commanding Officer No. 77 Squadron, Squadron Leader Cresswell (right), and members of No. 30 Communications Unit with Lieutenant General Robertson in South Korea, December 1950

  
  No. 91 (Composite) Wing was a Royal Australian Air Force (RAAF) wing that operated during the Korean War and its immediate aftermath. It was established in October 1950 to administer RAAF units deployed in the conflict: No. 77 (Fighter) Squadron, flying North American P-51 Mustangs; No. 30 Communications Flight, flying Austers and Douglas C-47 Dakotas; No. 391 (Base) Squadron; and No. 491 (Maintenance) Squadron. The wing was headquartered at Iwakuni, Japan, as were its subordinate units with the exception of No. 77 Squadron, which was based in Korea and came under the operational control of the United States Fifth Air Force.
  
  No. 30 Communications Flight was re-designated No. 30 Communications Unit in November 1950, and No. 30 Transport Unit a year later, before re-forming as No. 36 (Transport) Squadron in March 1953. It undertook medical evacuation, cargo and troop transport, and courier flights. No. 77 Squadron converted to Gloster Meteor jets between April and July 1951, and operated primarily in the ground attack role from December that year. It remained in Korea on garrison duty following the July 1953 armistice, and returned to Australia in November 1954; No. 491 Squadron disbanded the same month. No. 36 Squadron returned to Australia in March 1955, leaving four aircraft to equip the newly formed RAAF Transport Flight (Japan), which briefly came under No. 91 Wing's control. The following month, No. 391 Squadron and No. 91 Wing headquarters were disbanded. (Full article...)
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  An 1862 depiction of the Battle of Plum Point Bend; General Earl Van Dorn is the second vessel from the left

  
  CSS General Earl Van Dorn was a cottonclad warship used by the Confederate States of America during the American Civil War. She was purchased for Confederate service in New Orleans, Louisiana, in early 1862 to serve with the River Defense Fleet. She was converted into a cottonclad warship by installing an iron-covered framework of timbers on her bow that served as a ram, and protecting her machinery with timber bulkheads packed with cotton. A sidewheel steamer, she was 182 feet (55 m) long and was armed with a single 32-pounder cannon on the bow.
  
  Having been assigned to defend the northern stretches of the Confederate-held portion of the Mississippi River, General Earl Van Dorn left New Orleans in late March 1862 and arrived at Memphis, Tennessee, early the next month. On May 10, she fought with the River Defense Fleet against the Union Navy in the Battle of Plum Point Bend, where she rammed and sank the ironclad USS Mound City. On June 6, General Earl Van Dorn was the only vessel of the River Defense Fleet to escape destruction or capture at the First Battle of Memphis. After withdrawing up the Yazoo River to Liverpool Landing, Mississippi, General Earl Van Dorn, along with two other Confederate warships, was burnt by the Confederates to prevent her capture by approaching Union vessels. (Full article...)
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  SMS Erzherzog Franz Ferdinand on gunnery trials in 1908

  
  SMS Erzherzog Franz Ferdinand  was an Austro-Hungarian Radetzky-class pre-dreadnought battleship commissioned into the Austro-Hungarian Navy on 5 June 1910. She was named after Archduke Franz Ferdinand. The first ship of her class to be built, she preceded Radetzky by more than six months. Her armament included four 30.5 cm (12 in) guns in two twin turrets, and eight 24 cm (9.4 in) guns in four twin turrets.
  
  She participated in an international naval protest of the Balkan Wars in 1913, during which she helped enforce a blockade of Montenegro. She was also one of the first ships to deploy seaplanes for military use. During World War I, she saw limited service in the 2nd Division of the 1st Battle Squadron, including mobilization to assist the escape of the German ships SMS Goeben and SMS Breslau and the bombardment of Ancona in 1915. At the end of the war, she was ceded to Italy as a war prize and was eventually scrapped in 1926. (Full article...)
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  Illustration from "The House that Jack Built" in The Complete Collection of Pictures & Songs; engraving and printing by Edmund Evans, illustration by Randolph Caldecott (1887)

  
  
  Edmund Evans (23 February 1826 – 21 August 1905) was an English wood-engraver and colour printer during the Victorian era. He specialized in full-colour printing, a technique which, in part because of his work, became popular in the mid-19th century. He employed and collaborated with illustrators such as Walter Crane, Randolph Caldecott, Kate Greenaway and Richard Doyle to produce what are now considered to be classic children's books. Little is known about his life, although he wrote a short autobiography before his death in 1905 in which he described his life as a printer in Victorian London.
  
  After finishing an apprenticeship, Evans went into business for himself. By the early 1850s, he had established a reputation as a printer of covers for a type of cheap novels known as yellow-backs. In the early 1860s, he began to print children's toy books and picture books in association with the printing house Routledge and Warne. His intention was to produce books for children that were beautiful and inexpensive. For three decades he produced multiple volumes each year, first illustrated by Crane, and later by Caldecott and Greenaway. (Full article...)
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  The view across the entrance causeway across the ditch, with the site of the castle behind

  
  Buckton Castle was a medieval enclosure castle near Carrbrook in Stalybridge, Greater Manchester, England. It was surrounded by a 2.8-metre-wide (9 ft) stone curtain wall and a ditch 10 metres (33 ft) wide by 6 metres (20 ft) deep. Buckton is one of the earliest stone castles in North West England and only survives as buried remains overgrown with heather and peat. It was most likely built and demolished in the 12th century. The earliest surviving record of the site dates from 1360, by which time it was lying derelict. The few finds retrieved during archaeological investigations indicate that Buckton Castle may not have been completed.
  
  In the 16th century, the site may have been used as a beacon for the Pilgrimage of Grace. During the 18th century, the castle was of interest to treasure hunters following rumours that gold and silver had been discovered at Buckton. The site was used as an anti-aircraft decoy site during the Second World War. Between 1996 and 2010, Buckton Castle was investigated by archaeologists as part of the Tameside Archaeology Survey, first by the University of Manchester Archaeological Unit then the University of Salford's Centre for Applied Archaeology. The project involved community archaeology, and more than 60 volunteers took part. The castle, close to the Buckton Vale Quarry, is a Scheduled Ancient Monument. (Full article...)
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  Der Überfall bei Hochkirch am 14. Oktober 1758, Hyacinthe de la Pegna

  
  The Battle of Hochkirch took place on 14 October 1758, during the Third Silesian War (part of the Seven Years' War). After several weeks of maneuvering for position, an Austrian army of 80,000 commanded by Lieutenant Field Marshal Leopold Josef Graf Daun surprised the Prussian army of 30,000–36,000 commanded by Frederick the Great. The Austrian army overwhelmed the Prussians and forced a general retreat. The battle took place in and around the village of Hochkirch, 9 kilometers (6 mi) east of Bautzen, Saxony.
  
  Historians generally consider the battle as among Frederick's greatest blunders. Contrary to the advice of his subordinates, he refused to believe that the typically cautious Austrian commander Leopold von Daun would bring his troops into battle. The Austrian force ambushed his army in a pre-dawn attack. Over 30% of Frederick's army was defeated; five generals were killed, and he lost his artillery park and a vast quantity of supplies. Although Daun had scored a complete surprise, his attempt to pursue the retreating Prussians was unsuccessful. The escaped force united with another corps in the vicinity and regained momentum over the winter. (Full article...)
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  Nuclear reactors line the riverbank at the Hanford Site along the Columbia River in January 1960. The N Reactor is in the foreground, with the twin KE and KW Reactors in the immediate background. The historic B Reactor, the world's first plutonium production reactor, is visible in the distance.

  
  The Hanford Site is a decommissioned nuclear production complex operated by the United States federal government on the Columbia River in Benton County in the U.S. state of Washington. It has also been known as Site W and the Hanford Nuclear Reservation. Established in 1943 as part of the Manhattan Project, the site was home to the Hanford Engineer Works and B Reactor, the first full-scale plutonium production reactor in the world. Plutonium manufactured at the site was used in the first atomic bomb, which was tested in the Trinity nuclear test, and in the Fat Man bomb used in the bombing of Nagasaki.
  
  During the Cold War, the project expanded to include nine nuclear reactors and five large plutonium processing complexes, which produced plutonium for most of the more than 60,000 weapons built for the U.S. nuclear arsenal. Nuclear technology developed rapidly during this period, and Hanford scientists produced major technological achievements. The town of Richland, established by the Manhattan Project, became self-governing in 1958, and residents were able to purchase their properties. After sufficient plutonium had been produced, the production reactors were shut down between 1964 and 1971. (Full article...)
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  The Akutan Zero is inspected by US Navy personnel on Akutan Island on July 11, 1942.

  
  
  The Akutan Zero, also known as Koga's Zero (古賀のゼロ) and the Aleutian Zero, was a Mitsubishi A6M2 Model 21 Zero Japanese fighter aircraft piloted by Petty Officer Tadayoshi Koga, that crash-landed on Akutan Island, Alaska Territory, during World War II. It was found intact by the Americans in July 1942 and became the first Zero acquired by the United States during the war that could be restored to airworthy condition. It was repaired and flown by American test pilots. As a result of information gained from these tests, American tacticians were able to devise ways to defeat the Zero, which was the Imperial Japanese Navy's primary fighter plane throughout the war.
  
  The Akutan Zero has been described as "a prize almost beyond value to the United States", and "probably one of the greatest prizes of the Pacific War". Japanese historian and JASDF lieutenant general Masatake Okumiya stated that the acquisition of the Akutan Zero "was no less serious" than the Japanese defeat at the Battle of Midway, and that it "did much to hasten Japan's final defeat". Nonetheless, historian John Lundstrom and others challenge "the contention that it took dissection of Koga's Zero to create tactics that beat the fabled airplane". The Akutan Zero was destroyed in a training accident in 1945. Parts of it are preserved in several museums in the United States. (Full article...)
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  Bodies of massacre victims gathered near Waegwan, South Korea, many with their hands still bound

  
  The Hill 303 massacre (Korean: 303 고지 학살 사건) was a war crime that took place during the opening days of the Korean War on August 17, 1950, on a hill above Waegwan, Republic of Korea. Forty-one United States Army (US) prisoners of war were murdered by troops of the North Korean People's Army (KPA) during one of the engagements of the Battle of Pusan Perimeter.
  
  Operating near Taegu during the Battle of Taegu, elements of the US 2nd Battalion, 5th Cavalry Regiment, 1st Cavalry Division, were surrounded by KPA troops crossing the Nakdong River at Hill 303. Most of the US troops were able to escape, but one platoon of mortar operators misidentified KPA troops as Republic of Korea Army (ROK) reinforcements and was captured. KPA troops held the Americans on the hill and initially tried to move them across the river and out of the battle, but they were unable to do so because of a heavy counterattack. US forces eventually broke the KPA advance, routing the force. As the KPA began to retreat, one of their officers ordered the prisoners to be shot so they would not slow them down. (Full article...)
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  Cromwell at Dunbar, by Andrew Carrick Gow

  
  The Anglo-Scottish war (1650–1652), also known as the Third Civil War, was the final conflict in the Wars of the Three Kingdoms, a series of armed conflicts and political machinations between shifting alliances of religious and political factions in England, Scotland and Ireland.
  
  The 1650 English invasion of Scotland was a pre-emptive military incursion by the English Commonwealth's New Model Army, intended to allay the risk of Charles II invading England with a Scottish army. The First and Second English Civil Wars, in which English Royalists, loyal to Charles I, fought Parliamentarians for control of the country, took place between 1642 and 1648. When the Royalists were defeated for the second time the English government, exasperated by the duplicity of Charles I during negotiations, set up a High Court of Justice which found the King guilty of treason and executed him on 30 January 1649. At the time, England and Scotland were separate independent kingdoms, joined politically through a personal union; Charles I was, separately, both the King of Scotland, and the King of England. The Scots had fought in support of the English Parliamentarians in the First English Civil War, but sent an army in support of Charles I into England during the Second English Civil War. The Parliament of Scotland, which had not been consulted before the execution, declared his son, Charles II, King of Britain. (Full article...)
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  The shoulder insignia of the division: a slag heap and a pit winding gear tower, denoting the association of the division with the Staffordshire area.

  
  The 59th (Staffordshire) Infantry Division was an infantry division of the British Army that was formed during the Second World War and fought in the Battle of Normandy. In March 1939, after Germany re-emerged as a significant military power and invaded Czechoslovakia, the British Army increased the number of divisions in the Territorial Army (TA) by duplicating existing units. The 59th (Staffordshire) Motor Division was formed in September 1939, as a second-line duplicate of the 55th (West Lancashire) Motor Division. The division's battalions were all, initially, raised in Staffordshire.
  
  Established using the motor division concept, the division was formed with only two infantry brigades, rather than the usual three for an infantry division, and was fully mobile. The intention was to increase battlefield mobility, enabling the motor divisions to follow armoured forces through breaches in the enemy frontline to rapidly consolidate captured territory. Following the Battle of France, the concept was abandoned. The division was allocated a third infantry brigade, and became the 59th (Staffordshire) Infantry Division. It remained within the United Kingdom until 1944, assigned to anti-invasion and guard duties, while training for combat overseas. (Full article...)
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  Elsass underway c. 1904–1908

  
  SMS Elsass was the second of five pre-dreadnought battleships of the Braunschweig class in the German Imperial Navy. She was laid down in May 1901, launched in May 1903, and commissioned in November 1904, though an accident during sea trials delayed her completion until May 1905. She was named for the German province of Elsass, now the French region of Alsace. Her sister ships were Braunschweig, Hessen, Preussen and Lothringen. The ship was armed with a battery of four 28 cm (11 in) guns and had a top speed of 18 knots (33 km/h; 21 mph). Like all other pre-dreadnoughts built at the turn of the century, Elsass was quickly made obsolete by the launching of the revolutionary HMS Dreadnought in 1906; as a result, her career as a frontline battleship was cut short.
  
  The ship served in II Squadron of the German fleet after commissioning, and during this period, she was occupied with extensive annual training, as well as making good-will visits to foreign countries. Surpassed by new dreadnought battleships, Elsass was decommissioned in 1913, though she was reactivated a year later following the outbreak of World War I and assigned to IV Battle Squadron. Elsass saw action in the Baltic Sea against the Russian Navy. In August 1915, she participated in the Battle of the Gulf of Riga, during which she engaged the Russian battleship Slava. In 1916, she was placed in reserve because of crew shortages and the threat of British submarines operating in the Baltic, and she spent the remainder of the war as a training ship. (Full article...)
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  The Rudd Concession, a written concession for exclusive mining rights in Matabeleland, Mashonaland and other adjoining territories in what is today Zimbabwe, was granted by King Lobengula of Matabeleland to Charles Rudd, James Rochfort Maguire and Francis Thompson, three agents acting on behalf of the South African-based politician and businessman Cecil Rhodes, on 30 October 1888. Despite Lobengula's retrospective attempts to disavow it, it proved the foundation for the royal charter granted by the United Kingdom to Rhodes's British South Africa Company in October 1889, and thereafter for the Pioneer Column's occupation of Mashonaland in 1890, which marked the beginning of white settlement, administration and development in the country that eventually became Rhodesia, named after Rhodes, in 1895.
  
  Rhodes's pursuit of the exclusive mining rights in Matabeleland, Mashonaland and the surrounding areas was motivated by his wish to annex them into the British Empire as part of his personal ambition for a Cape to Cairo Railway—winning the concession would enable him to gain a royal charter from the British government for a chartered company, empowered to annex and thereafter govern the Zambezi–Limpopo watershed on Britain's behalf. He laid the groundwork for concession negotiations during early 1888 by arranging a treaty of friendship between the British and Matabele peoples and then sent Rudd's team from South Africa to obtain the rights. Rudd succeeded following a race to the Matabele capital Bulawayo against Edward Arthur Maund, a bidding-rival employed by a London-based syndicate, and after long negotiations with the king and his council of izinDuna (tribal leaders). (Full article...)

Featured picture

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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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  First permanent photograph

  Photo credit: Nicéphore Niépce

  The first successful permanent photograph, created in 1826, is titled "View from the Window at Le Gras". It required an eight-hour exposure in bright sunshine and was printed on a polished pewter plate covered with a petroleum derivative called bitumen of Judea. Due to the long exposure, the buildings are illuminated by the sun from both right and left.
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  Ziegler Polar Expedition

  Photo credit: Anthony Fiala

  A panorama from the Ziegler Polar Expedition of 1903–05, an unsuccessful attempt to reach the North Pole. The party remained stranded north of the Arctic Circle for two years before being rescued, yet all but one of its members survived.
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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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  Selimiye Barracks

  Lithography: Day & Son; Restoration: Jake Wartenberg

  An 1856 lithograph of the Selimiye Barracks, located in Istanbul, Turkey, being used as a hospital during the Crimean War. Florence Nightingale's experiences here during this time helped her develop the foundations of modern nursing. As such, the barracks now contain a museum dedicated to her and her staff.
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  Rajputs

  Image: The Illustrated London News
  Restoration: Adam Cuerden

  An 1876 engraving of Khokar Rajputs of Punjab. The Rajputs are one of the major Hindu Kshatriya (warrior) groups of India. Rajputs rose to prominence during the 9th to 11th centuries, and by the time of Indian independence, they ruled more than two-thirds of the estimated six hundred princely states, including three-quarters of the salute states.
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  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.
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  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.
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  Borobudur

  Photo: William Henry Jackson; Restoration: Lise Broer

  A man climbs a statue of a Buddhist idol at Borobudur, a 9th-century Mahayana Buddhist monument near Magelang, Central Java, Indonesia, in this 1895 hand-tinted lantern slide. The monument comprises six square platforms topped by three circular platforms, and is decorated with 2,672 relief panels and 504 Buddha statues. The monument is both a shrine to the Lord Buddha and a place for Buddhist pilgrimage. Evidence suggests Borobudur was abandoned following the 14th-century decline of Buddhist and Hindu kingdoms in Java, and the Javanese conversion to Islam. The monument is a UNESCO World Heritage Site and is the most popular tourist attraction in the country.
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  Invasion of Normandy

  Photo credit: United States Coast Guard

  Landing ships putting ashore on Omaha Beach at low tide during the first days of the Invasion of Normandy, mid-June, 1944. Barrage balloons fly overhead and U.S. Army "half-tracks" form a convoy on the beach. The Normandy landing was the largest seaborne invasion in history, with almost three million troops crossing the English Channel.
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  1895 train wreck, Gare Montparnasse

  Photo credit: Studio Lévy and Sons

  On October 22, 1895, the Granville–Paris Express train overran the buffer stop at Gare Montparnasse station. The engine careened across almost 30 metres (100 feet) of the station concourse, crashed through a 60 centimetre thick wall, shot across a terrace and sailed out of the station, plummeting onto the Place de Rennes 10 metres (30 feet) below where it stood on its nose. While all of the passengers on board the train survived, one woman on the street below was killed by falling masonry.
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  Anti-Slavery Society

  Painting by Benjamin Haydon

  Benjamin Haydon's painting of Thomas Clarkson addressing the 1840 Anti-Slavery Convention, held by the Anti-Slavery Society at Exeter Hall in London. The organisation was the second to bear that name and was dedicated to the abolishment of slavery worldwide. It continues to function today as Anti-Slavery International.
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  Battle of Jerusalem (1917)

  Photo: American Colony; Restoration: Sebastian Kolendo

  The Mayor of Jerusalem Hussein al-Husayni (centre) meets with soldiers of the British Egyptian Expeditionary Force on December 9, 1917, under the white flag of surrender. The Battle of Jerusalem had begun the day before, but the Turkish forces in the city were no match against the British forces. A Turkish counterattack on December 25 was also repulsed, confirming the capture of Jerusalem by the Allies.
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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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  Machu Picchu

  Photo: Martin St-Amant

  Machu Picchu, with the peak Huayna Picchu behind it. Perhaps the most famous Inca site, Machu Picchu is situated on a mountain ridge above the Urubamba Valley in Peru. It was probably built as an estate for the Inca emperor Pachacuti in the 15th century, but abandoned soon after during the Spanish conquest of the Inca Empire. Although known locally, it was unknown to the outside world before being brought to international attention in 1911 by the American historian Hiram Bingham, and it is now an important tourist attraction.
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  Map of the Battle of the Somme

  Map: Grandiose

  The Battle of the Somme was a battle of the First World War fought between 1 July and 18 November 1916 by the armies of the British and French empires against the German Empire. The largest battle of World War I on the Western Front, it was fought on both sides of upper reaches of the River Somme in France. More than one million men were wounded or killed, making it one of the bloodiest battles in human history.
  
  This map shows the situation on the first day on the Somme, as well as Allied gains up to 19 November 1916.
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  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.
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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)

  
  

Did you know (auto generated)

• ... that the market hall of Niort opened in 1871 and has been listed as a historic monument since 1987?
• ... that Elisabeth Griffith's sweeping 100-year history of the American equal-rights movement has been compared to listening to Billy Joel's "We Didn't Start the Fire"?
• ... that history sniffing has been used to track Papa John's customers?
• ... that the radio program Radio City Music Hall of the Air employed approximately 10,000 musicians during the first eight years of its broadcast history?
• ... that throughout the history of education in Wales, schools have been held in monastic settlements, cathedrals, residential houses, marketplaces, barns, churches, and village halls?
• ... that the Quad Cities forecast office of the National Weather Service has been directly struck by both an F1 tornado and a historic derecho?

Featured biography –

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

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Jürgen Ehlers (German: [ˈjʏʁɡn̩ ˈʔeːlɐs]; 29 December 1929 – 20 May 2008) was a German physicist who contributed to the understanding of Albert Einstein's theory of general relativity. From graduate and postgraduate work in Pascual Jordan's relativity research group at Hamburg University, he held various posts as a lecturer and, later, as a professor before joining the Max Planck Institute for Astrophysics in Munich as a director. In 1995, he became the founding director of the newly created Max Planck Institute for Gravitational Physics in Potsdam, Germany.

Ehlers' research focused on the foundations of general relativity as well as on the theory's applications to astrophysics. He formulated a suitable classification of exact solutions to Einstein's field equations and proved the Ehlers–Geren–Sachs theorem that justifies the application of simple, general-relativistic model universes to modern cosmology. He created a spacetime-oriented description of gravitational lensing and clarified the relationship between models formulated within the framework of general relativity and those of Newtonian gravity. In addition, Ehlers had a keen interest in both the history and philosophy of physics and was an ardent populariser of science. (Full article...)

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Richard Plantagenet Campbell Temple-Nugent-Brydges-Chandos-Grenville, 3rd Duke of Buckingham and Chandos

• 1871 – The Duke of Buckingham (pictured) opened the first section of the Brill Tramway, a short railway line to transport goods between his lands and the national rail network.
• 2001 – Same-sex marriage in the Netherlands was legalized, making it the first country to do so.

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