Portal:History

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The History Portal

Library of Alexandria

History is the systematic study of the past, focusing primarily on the human past. As an academic discipline, it analyses 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 strive to integrate the perspectives of several 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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  The Truce of Calais (French: Trêve de Calais) was a truce agreed by King Edward III of England and King Philip VI of France on 28 September 1347, which was mediated by emissaries of Pope Clement VI. The Hundred Years' War had broken out in 1337 and in 1346 Edward had landed with an army in northern France. After inflicting a heavy defeat on Philip and a French army at the Battle of Crécy the English besieged Calais, which fell after 11 months. Both countries were financially and militarily exhausted and two cardinals acting for Pope Clement were able to broker a truce in a series of negotiations outside Calais. This was signed on 28 September to run until 7 July 1348.
  
  Edward suggested extending the truce in May 1348, but Philip was keen to campaign. However, the effects of the Black Death, which spread to both kingdoms in 1348, caused the truce to be renewed in 1348, 1349 and 1350. While the truce was in effect neither country campaigned with a full field army, but it did not stop repeated naval clashes nor fighting in Gascony and Brittany. Philip died on 22 August 1350 and it was unclear whether the truce then lapsed, as it had been signed on his personal authority. His son and successor, John II, took to the field with a large army in south-west France. Once this campaign was successfully completed John authorised the renewal of the truce for one year to 10 September 1352. English adventurers seized the strategically located town of Guînes in January 1352, causing full-scale fighting to break out again, which went badly for the French. (Full article...)
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  SMS Rheinland in 1910

  
  The Nassau class was a group of four dreadnought battleships built for the German Kaiserliche Marine (Imperial Navy) in the early 1900s. The class comprised Nassau, the lead ship, Rheinland, Posen, and Westfalen. All four ships were laid down in mid-1907, and completed by late 1910. They were Germany's first dreadnought class, and though commonly perceived as having been built in response to the British Dreadnought, their design traces its origin to 1903; they were in fact a response to Dreadnought's predecessors of the Lord Nelson class. The Nassaus adopted a main battery of twelve 28 cm (11 in) guns in six twin-gun turrets in an unusual hexagonal arrangement. Unlike many other dreadnoughts, the Nassau-class ships retained triple-expansion steam engines instead of more powerful steam turbines.
  
  After entering service, the Nassau-class ships served as II Division, I Battle Squadron of the High Seas Fleet for the duration of their careers. From 1910 to 1914, the ships participated in the normal peacetime routine of the German fleet, including various squadron exercises, training cruises, and fleet maneuvers every August–September. Following the outbreak of World War I in July 1914, the ships took part in numerous fleet operations intended to isolate and destroy individual elements of the numerically superior British Grand Fleet. These frequently consisted of sailing as distant support to the battlecruisers of I Scouting Group as they raided British coastal towns. These operations culminated in the Battle of Jutland on 31 May – 1 June 1916, where the ships helped to sink the armored cruiser HMS Black Prince. (Full article...)
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  Preussen in 1907

  
  SMS Preussen was the fourth of five pre-dreadnought battleships of the Braunschweig class, built for the German Kaiserliche Marine (Imperial Navy). She was laid down in April 1902, was launched in October 1903, and was commissioned in July 1905. Named for the state of Prussia, 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 pre-dreadnoughts built at the turn of the century, Preussen was quickly made obsolete by the launching of the revolutionary HMS Dreadnought in 1906; as a result, she saw only limited service with the German fleet.
  Preussen's peacetime career centered on squadron and fleet exercises and training cruises to foreign ports. The ship served as the flagship of II Battle Squadron of the High Seas Fleet for the majority of her career. During World War I, she served as a guard ship in the German Bight and later in the Danish straits. She participated in a fleet sortie in December 1914 in support of the Raid on Scarborough, Hartlepool and Whitby during which the German fleet briefly clashed with a detachment of the British Grand Fleet. Preussen had been temporarily assigned to guard ship duties in the Baltic in May 1916, and so missed the Battle of Jutland. Due to her age, she did not rejoin the fleet, and instead continued to serve as a guard ship until 1917, when she became a tender for U-boats based in Wilhelmshaven. (Full article...)
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  The boy-king Richard II meets the rebels on 14 June 1381, in a miniature from a 1470s copy of Jean Froissart's Chronicles.

  
  The Peasants' Revolt, also named Wat Tyler's Rebellion or the Great Rising, was a major uprising across large parts of England in 1381. The revolt had various causes, including the socio-economic and political tensions generated by the Black Death in the 1340s, the high taxes resulting from the conflict with France during the Hundred Years' War, and instability within the local leadership of London. The revolt heavily influenced the course of the Hundred Years' War, by deterring later Parliaments from raising additional taxes to pay for military campaigns in France.
  
  Medieval historian Tom Johnson in 2025 describes the revolt as "the largest popular uprising in English history. It was the result of a series of inept short-term political decisions - military failures, financial corruption and the imposition of a third poll tax in four years - but it became a national emergency because of the extent to which government now intruded into its subjects' lives." (Full article...)
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  The Nyon Conference was a diplomatic conference held in Nyon, Switzerland, in September 1937 to address attacks on international shipping in the Mediterranean Sea during the Spanish Civil War. The conference was convened in part because Italy had been carrying out unrestricted submarine warfare, although the final conference agreement did not accuse Italy directly; instead, the attacks were referred to as "piracy" by an unidentified body. Italy was not officially at war, nor did any submarine identify itself. The conference was designed to strengthen non-intervention in the Spanish Civil War. The United Kingdom and France led the conference, which was also attended by Bulgaria, Egypt, Greece, Romania, Turkey, the Soviet Union and Yugoslavia.
  
  The first agreement, signed on 14 September 1937, included plans to counterattack aggressive submarines. Naval patrols were established; the United Kingdom and France were to patrol most of the western Mediterranean and parts of the east, and the other signatories were to patrol their own waters. Italy was to be allowed to join the agreement and patrol the Tyrrhenian Sea if it wished. A second agreement followed three days later, applying similar provisions to surface ships. Italy and Germany did not attend, although the former took up naval patrols in November. In marked contrast to the actions of the Non-Intervention Committee and the League of Nations, this conference succeeded in preventing attacks by submarines. (Full article...)
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  Thermal Diffusion Process Building at S-50. The building in the background with the smokestacks is the K-25 powerhouse.

  
  The S-50 Project was the Manhattan Project's effort to produce enriched uranium by liquid thermal diffusion during World War II. It was one of three technologies for uranium enrichment pursued by the Manhattan Project.
  
  The liquid thermal diffusion process was not one of the enrichment technologies initially selected for use in the Manhattan Project, and was developed independently by Philip H. Abelson and other scientists at the United States Naval Research Laboratory. This was primarily due to doubts about the process's technical feasibility, but inter-service rivalry between the United States Army and United States Navy also played a part. (Full article...)
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  Figure 1: A solution (in purple) to Apollonius's problem. The given circles are shown in black.

  
  
  In Euclidean plane geometry, Apollonius's problem is to construct circles that are tangent to three given circles in a plane (Figure 1). Apollonius of Perga (c. 262 BC – c. 190 BC) posed and solved this famous problem in his work Ἐπαφαί (Epaphaí, "Tangencies"); this work has been lost, but a 4th-century AD report of his results by Pappus of Alexandria has survived. Three given circles generically have eight different circles that are tangent to them (Figure 2), a pair of solutions for each way to divide the three given circles in two subsets (there are 4 ways to divide a set of cardinality 3 in 2 parts).
  
  In the 16th century, Adriaan van Roomen solved the problem using intersecting hyperbolas, but this solution does not use only straightedge and compass constructions. François Viète found such a solution by exploiting limiting cases: any of the three given circles can be shrunk to zero radius (a point) or expanded to infinite radius (a line). Viète's approach, which uses simpler limiting cases to solve more complicated ones, is considered a plausible reconstruction of Apollonius' method. The method of van Roomen was simplified by Isaac Newton, who showed that Apollonius' problem is equivalent to finding a position from the differences of its distances to three known points. This has applications in navigation and positioning systems such as LORAN. (Full article...)
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  Edward III outside a walled town

  
  King Edward III of England led a campaign in the Duchy of Brittany in 1342 and 1343. England, at war with France since 1337 in the Hundred Years' War, had sided with John of Montfort's faction in the Breton Civil War soon after it broke out in 1341. The French king, Philip VI, supported Charles of Blois, who was his nephew. By August 1342 Charles had captured John and reduced his partisans back to just one fortification, Brest in western Brittany. An English fleet broke the blockade of Brest on 18 August. On 30 September a numerically inferior English army inflicted a heavy defeat on the French at the battle of Morlaix.
  
  Edward was supposed to arrive with the next contingent of his army shortly after the first, but had severe difficulties gathering sufficient shipping. On 6 October he abandoned his siege train and set sail with those troops he was able to embark onto the available ships. They reached Brittany on 26 October after a storm-wracked three-week passage and Edward advanced on the major Breton town of Vannes. The naval component went ahead, was mauled by a force of mercenary galleys and then failed in an attempt to take Vannes by a coup de main. The land component was delayed building siege engines before attempting to storm the town on 29 November. The newly reinforced French garrison repelled this assault and a siege began. (Full article...)
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  Illustration of Shuttle-Centaur G-Prime with Ulysses

  
  Shuttle-Centaur was a version of the Centaur upper stage rocket designed to be carried aloft inside the Space Shuttle and used to launch satellites into high Earth orbits or probes into deep space. Two variants were developed: Centaur G-Prime, which was planned to launch the Galileo and Ulysses robotic probes to Jupiter, and Centaur G, a shortened version planned for use with United States Department of Defense Milstar satellites and the Magellan Venus probe. The powerful Centaur upper stage allowed for heavier deep space probes, and for them to reach Jupiter sooner, prolonging the operational life of the spacecraft. However, neither variant ever flew on a Shuttle. Support for the project came from the United States Air Force (USAF) and the National Reconnaissance Office, which asserted that its classified satellites required the power of Centaur. The USAF agreed to pay half the design and development costs of Centaur G, and the National Aeronautics and Space Administration (NASA) paid the other half.
  
  Both versions were cradled in the reusable Centaur integrated support system (CISS), an aluminum structure that handled communications between the Space Shuttle and the Centaur. All Centaur stages periodically vented hydrogen, which needs to be stored below −253 °C (−423 °F) to keep it from boiling. Two Shuttle-Centaur missions were scheduled, with one-hour launch windows six days apart, so two separate spacecraft and launch pads were required. The Space Shuttles Challenger and Atlantis were modified to carry the CISS. The Space Shuttle main engines would have been run at 109 percent of the rated power level (with regular Shuttle flights using 104%, possible thanks to margins that were found after development concluded). The payloads needed to be deployed on the first day in orbit, so the missions would be flown by four-person crews composed of astronauts who had already flown in space and were known to not suffer from space adaptation syndrome. The first Centaur G-Prime was rolled out from the General Dynamics factory in Kearny Mesa, San Diego, on 13 August 1985. (Full article...)
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  Approximate location of the Canoe River train crash

  
  The Canoe River train crash occurred on November 21, 1950, near Valemount in eastern British Columbia, Canada, when a westbound troop train and the eastbound Canadian National Railway (CNR) Continental Limited collided head-on. The collision killed 21 people: 17 Canadian soldiers en route to the Korean War and the two-man locomotive crew of each train.
  
  The post-crash investigation found that the order given to the troop train differed from the intended message. Crucial words were missing, causing the troop train to proceed on its way rather than halt on a siding, resulting in the collision. A telegraph operator, Alfred John "Jack" Atherton, was charged with manslaughter; the Crown alleged that he was negligent in passing an incomplete message. His family hired his Member of Parliament, John Diefenbaker, as defence counsel. Diefenbaker joined the British Columbia bar to take the case, and obtained Atherton's acquittal. (Full article...)
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  Major Francis John William Harvey, VC (29 April 1873 – 31 May 1916) was an officer of the British Royal Marine Light Infantry during the First World War. Harvey was posthumously awarded the Victoria Cross, the highest military award for gallantry in the face of the enemy given to British and Commonwealth forces, for his actions at the height of the Battle of Jutland. A long-serving Royal Marine officer descended of a military family, during his career Harvey became a specialist in naval artillery, serving on many large warships as gunnery training officer and gun commander. Specially requested for HMS Lion, the flagship of the British battlecruiser fleet, Harvey fought at the battles of Heligoland Bight, Dogger Bank and Jutland.
  
  At Jutland, Harvey, although mortally wounded by German shellfire, ordered the magazine of Q turret on the battlecruiser Lion to be flooded. This action prevented the tons of cordite stored there from catastrophically detonating in an explosion that would have destroyed the vessel and all aboard her. Although he succumbed to his injuries seconds later, his dying act may have saved over a thousand lives and prompted Winston Churchill to later comment: "In the long, rough, glorious history of the Royal Marines there is no name and no deed which in its character and consequences ranks above this". (Full article...)
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  The Western Mediterranean just before the start of the war in 264 BC: Rome is shown in red, Carthage in grey, and Syracuse in green

  
  The First Punic War (264–241 BC) was the first of three wars fought between Rome and Carthage, the two main powers of the western Mediterranean in the early 3rd century BC. For 23 years, in the longest continuous conflict and greatest naval war of antiquity, the two powers struggled for supremacy. The war was fought primarily on the Mediterranean island of Sicily and its surrounding waters, and also in North Africa. After immense losses on both sides, the Carthaginians were defeated and Rome gained territory from Carthage.
  
  The war began in 264 BC with the Romans gaining a foothold on Sicily at Messana (modern Messina). The Romans then pressed Syracuse, the only significant independent power on the island, into allying with them and laid siege to Carthage's main base at Akragas. A large Carthaginian army attempted to lift the siege in 262 BC but was heavily defeated at the Battle of Akragas. The Romans then built a navy to challenge the Carthaginians, and using novel tactics inflicted several defeats. A Carthaginian base on Corsica was seized, but an attack on Sardinia was repulsed; the base on Corsica was then lost. Taking advantage of their naval victories the Romans launched an invasion of North Africa, which the Carthaginians intercepted. At the Battle of Cape Ecnomus the Carthaginians were again beaten; this was possibly the largest naval battle in history by the number of combatants involved. The invasion initially went well and in 255 BC the Carthaginians sued for peace; the proposed terms were so harsh that they fought on, defeating the invaders. The Romans sent a fleet to evacuate their survivors and the Carthaginians opposed it at the Battle of Cape Hermaeum off Africa; the Carthaginians were heavily defeated. The Roman fleet, in turn, was devastated by a storm while returning to Italy, losing most of its ships and over 100,000 men. (Full article...)
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  A "WikiProject" is a group of contributors who want to work together as a team to improve Wikipedia. These groups may focus on a specific topic area (for example, women's history), a specific location or a specific kind of task (for example, checking newly created pages). As of August 2022, the English Wikipedia had over 2,000 WikiProjects, for which activity varied.
  
  In 2007, in preparation for producing a print version, the English Wikipedia introduced an assessment scale of the quality of articles. Articles are rated by WikiProjects. The range of quality classes begins with "Stub" (very short pages), followed by "Start", "C" and "B" (in increasing order of quality). Community peer review is needed for the article to enter one of the quality classes: either "good article", "A" or the highest, "featured article". Of the about 6.5 million articles and lists assessed as of April 2022, more than 6,000 (0.09%) are featured articles, and fewer than 4,000 (0.06%) are featured lists. One featured article per day, as selected by editors, appears on the main page of Wikipedia. (Full article...)
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  Photograph by W. & D. Downey, 1891

  
  Prince Albert Victor, Duke of Clarence and Avondale (Albert Victor Christian Edward; 8 January 1864 – 14 January 1892) was the eldest child of the Prince and Princess of Wales (later King Edward VII and Queen Alexandra). From the time of his birth, he was second in the line of succession to the British throne, but did not become king or Prince of Wales because he died before both his father and paternal grandmother Queen Victoria.
  
  Albert Victor was known to his family, and many later biographers, as "Eddy". When he was young, he travelled the world extensively as a Royal Navy cadet, and as an adult, he joined the British Army, but did not undertake any active military duties. After two unsuccessful courtships, he became engaged to be married to his second cousin once removed Princess Victoria Mary of Teck in late 1891. A few weeks later, he died during a major pandemic. Mary later married his younger brother, the future King George V. (Full article...)
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  The first British Phantom (XT595) during a test flight in 1968

  
  The McDonnell Douglas F-4 Phantom II was one of the principal combat aircraft of the United Kingdom (UK) from 1968 to 1992. The UK was the first export customer for the US-built F-4 Phantom, which was ordered in the context of political and economic difficulties around British designs for similar aircraft. The Phantom was procured to serve in both the Royal Navy's Fleet Air Arm and the Royal Air Force (RAF) in several roles including air defence, close air support, low-level attack and tactical reconnaissance.
  
  Most Phantoms operated by the UK were built as a special batch containing a significant amount of British technology. This was a means of supporting the British aerospace industry in the wake of major project cancellations. Two variants were initially built for the UK: the F-4K variant was designed from the outset as an air-defence interceptor to be operated by the Fleet Air Arm from the Royal Navy's aircraft carriers, and the F-4M version was procured for the RAF to serve in tactical strike and reconnaissance roles. In the mid-1980s, a third Phantom variant was obtained when fifteen second-hand F-4J aircraft were purchased to augment the UK's air defences following the Falklands War. (Full article...)

Featured picture

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  Khoikhoi

  Artist: Samuel Daniell

  An 1805 depiction of a Khoikhoi family dismantling their huts, preparing to move to new pastures. The Khoikhoi are a native people of southwestern Africa, closely related to the Bushmen. Most of the Khoikhoi have largely disappeared as a group, except for the largest group, the Namas.
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  Ivan the Terrible Showing His Treasury to Jerome Horsey

  Artist: Alexander Litovchenko

  Alexander Litovchenko's 1875 painting depicting Ivan IV of Russia seated in the Kremlin Armoury, his half-witted heir Fyodor standing behind, a group of distrustful boyars whispering at a distance, and the Tsar's jester in a skomorokh cap addressing the English diplomat Jerome Horsey. Horsey was a resident of the Russia Company in Moscow from 1572 to 1585.
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  Arecibo message

  Graphic: Arne Nordmann

  A color visual interpretation of the digital signal in the Arecibo message, sent in 1974 from the Arecibo Observatory. Broadcast into space via frequency modulated radio waves at a ceremony to mark the remodeling of the Arecibo radio telescope in Puerto Rico, the message consisted of 1,679 binary digits, approximately 210 bytes, transmitted at a frequency of 2,380 MHz. It was aimed at the Great Globular Cluster in Hercules, some 25,000 light-years away, and contains information related to mathematics, chemistry, and astronomy.
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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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  Jean-Paul Marat

  Credit: anonymous

  A 1793 etching with watercolor of Jean-Paul Marat, a radical journalist and politician from the French Revolution, carried on shoulders with a crown of laurel leaves, celebrating his acquittal by the Revolutionary Tribunal. From January to May 1793, Marat fought bitterly with the Girondins, whom he believed to be covert enemies of republicanism. The National Convention ordered the trial, but his acquittal only served to increase his public profile and popular support.
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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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  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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  Charge of the Light Brigade

  Artist: William Simpson; Restoration: Adam Cuerden

  On October 25, 1854, during the Battle of Balaclava in the Crimean War, British cavalry units charged heavily fortified Russian opposition, an action known as the Charge of the Light Brigade. By mischance, they attacked the wrong target, as the orders were unclear, and as a result suffered great casualties. Alfred, Lord Tennyson's famous poem made the charge a symbol of warfare at both its most courageous and its most tragic.
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  Historical reenactment

  Photo: Myrabella

  A historical reenactment is an educational or entertainment activity in which participants follow a prearranged plan to recreate aspects of a historical event or period. Here, a group reenacts the Battle of Waterloo, in which an Imperial French army under the command of Emperor Napoleon Bonaparte was defeated by the armies of the Seventh Coalition.
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  Knight

  Illustration: Anton Sorg; Restoration: Lise Broer

  A knight, a member of the warrior class of the Middle Ages in Europe, in Gothic plate armour, from a German book illustration published 1483. The modern concept of the knight is as an elite warrior sworn to uphold the values of chivalry, faith, loyalty, courage and honour. Knighthood as known in Medieval Europe was characterized by the combination of two elements: feudalism and service as a mounted combatant. Both arose under the reign of the Holy Roman Emperor Charlemagne, from which the knighthood of the Middle Ages can be seen to have had its genesis.
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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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  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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  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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  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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  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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  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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  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 West Auckland is home to the largest stratovolcano in the geologic history of New Zealand?
• ... that Nakba denial is a form of historical negationism pertaining to the 1948 Palestinian expulsion and flight?
• ... that The Use and Abuse of History: Or How the Past Is Taught explores how school textbooks across the world distort history to serve political interests?
• ... that Seattle Reign FC have had three name changes during their 11-year history?
• ... that Gary Tuggle, as head of Philadelphia's Drug Enforcement Administration division, led potentially the largest prepackaged heroin seizure in Delaware history?
• ... that Songs and Flowers of the Wasatch represented a shift in Mormon history toward a "socially-accepted American cultural and religious heritage", according to historian Jennifer Reeder?

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...)

On this day

April 30: Yom HaZikaron in Israel (2025)

Evacuees on the USS Midway

• 311 – The Diocletianic Persecution of Christians officially ended in the eastern Roman Empire.
• 1943 – Second World War: The Royal Navy submarine HMS Seraph began Operation Mincemeat to deceive Germany about the upcoming invasion of Sicily.
• 1963 – A refusal by the Bristol Omnibus Company and the Transport and General Workers' Union to permit the employment of black bus crews led to a bus boycott in Bristol, England.
• 1975 – American forces completed a helicopter evacuation (aircraft and evacuees pictured) of U.S. citizens, South Vietnamese civilians and others from Saigon, just before North Vietnamese troops captured the city and ended the Vietnam War.
• 2021 – A crowd crush killed 45 people during the annual pilgrimage to the tomb of Rabbi Shimon bar Yochai in Israel.

• Marie of the Incarnation (d. 1672)
• Emily Stowe (d. 1903)
• Kirsten Dunst (b. 1982)

More anniversaries:

• April 29
• April 30
• May 1

Selected quote

Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.

— Benjamin Franklin, American statesman

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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Here are some tasks awaiting attention: Article requests : Requested articles/Social sciences/History Copyedit : History articles needing copy editing Photo : Wikipedia requested photographs of history Stubs : Expand history stub articles Are you a historian : i.e. one who studies and writes history, and who has a keen interest in writing outstanding articles? Join our group by adding Category:Wikipedian historians to the bottom of your user page.

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