February 14 in History

The Abbasid revolution, was the overthrow of the Umayyad Caliphate (661–750), the second major caliphate, by the Hashimiyya movement, resulting in the establishment of the Abbasid Caliphate (750–1517), the third major caliphate.

Charles the Bald (French: Charles le Chauve; 13 June 823 – 6 October 877) was king of West Francia (843–77), king of Italy (875–77) and emperor of the Carolingian Empire (875–77). After a series of civil wars during the reign of his father, Louis the Pious, Charles succeeded, by the Treaty of Verdun (843), in acquiring the western third of the empire. He was a grandson of Charlemagne and the youngest son of Louis the Pious by his second wife, Judith.

Pope Benedict VIII (Latin: Benedictus VIII; c. 980 – 9 April 1024) was bishop of Rome and ruler of the Papal States from 18 May 1012 until 1024. He was born Theophylact of Tusculum to the noble family of the counts of Tusculum. Unusually for a medieval pope, he had strong authority both in Rome and abroad. Theophylact was born to Count Gregory I of Tusculum. The family had already produced three popes: John XI (r. 931–935), John XII (r. 955–964), and Benedict VII (r. 973–974). Theophylact became pope on 18 May 1012 and took the name Benedict VIII.

A papal election was held on 14 February 1130, after the death of Pope Honorius II, and resulted in a double election. Part of the cardinals, led by Cardinal-Chancellor Aymery de la Châtre, elected Gregorio Papareschi as Innocent II, but the rest of them refused to recognize him and elected Cardinal Pietro Pierleoni, who took the name of Anacletus II. Although Anacletus had the support of the majority of the cardinals, the Catholic Church today considers Innocent II to have been the legitimate pope and Anacletus II the antipope. The double election was a result of the growing tensions inside the College of Cardinals concerning the policy of the Holy See towards the Holy Roman Empire, initiated by the Concordat of Worms (1122), which ended the investiture controversy. Several, particularly older, cardinals considered the compromise achieved in Worms as desertion of the principles of the Gregorian Reform, and inclined to accept it only as a tactical move. They supported the traditional alliance of the Papacy with the Normans in southern Italy. Some of them were connected to old monastic centers in Southern Italy such as Montecassino. One of their leaders was Cardinal Pierleoni, representative of one of the most powerful families of Rome. The opposite faction was headed by Aymery de la Châtre, who was named cardinal and chancellor of the Holy See shortly after signing the Concordat of Worms and was one of the main architects of the new policy. He and his adherents looked at the compromise as a good solution both for the Church and the Emperor, and did not trust the Norman vassals of the Holy See, who expressed some expansionist tendencies. It seems that at least some major representatives of this faction had strong connections to the "new spirituality", meaning the new religious orders such as regular canons. Besides, they were allied with the Roman family of Frangipani, opponents of the Pierleoni family. In the last weeks of the lifetime of Pope Honorius II the cardinals, fearing the possible schism, made an agreement that the new pope would be elected by the commission of eight of them, including two cardinal-bishops, three cardinal-priests and three cardinal-deacons.

The Strasbourg massacre occurred on 14 February 1349, when the entire Jewish community of 2,000 Jews was publicly burnt to death as part of the Black Death persecutions. Starting in the spring of 1348, pogroms against Jews had occurred in European cities, starting in Toulon. By November of that year, they spread via Savoy to German-speaking territories. In January 1349, burnings of Jews took place in Basel and Freiburg, and on 14 February the Jewish community in Strasbourg was destroyed. This event was heavily linked to a revolt by the guilds five days previously, the consequences of which were the displacement of the master tradesmen, a reduction of the power of the patrician bourgeoisie, who had until then been ruling almost exclusively, and an increase in the power of the groups that were involved in the revolt. The aristocratic families of Zorn and Müllenheim, which had been displaced from the council and their offices in 1332, recovered most of their power. The guilds, which until then had no means of political participation, could occupy the most important position in the city, that of the Ammeister (equivalent to mayor). The revolt had occurred because a large part of the population, on the one hand, believed the power of the master tradesmen was too great, particularly that of the then-Ammeister Peter Schwarber. On the other hand, there was a desire to put an end to the policy of protecting Jews under Peter Schwarber.

Conquistadors or conquistadores were Spanish and Portuguese colonists who explored, traded with, and conquered many parts of the Americas, Africa, Asia, and Oceania during the Age of Discovery. Sailing beyond the Iberian Peninsula, they established numerous colonies and trade routes, and brought much of the New World under the dominion of Spain and Portugal.

Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of a heresy.

Akbar (Jalal-ud-Din Muhammad Akbar, (1542-10-15)15 October 1542 – (1605-10-27)27 October 1605), also known as Akbar the Great, was the third Mughal emperor, who reigned from 1556 to 1605. Akbar succeeded his father, Humayun, under a regent, Bairam Khan, who helped the young emperor expand and consolidate Mughal domains in the Indian subcontinent. He is generally considered one of the greatest Mughal emperors. Akbar was a descendant of Timur and Genghis Khan through his paternal line. Akbar gradually expanded the Mughal Empire to cover much of the Indian subcontinent through military, political, economic, and cultural means. His military successes and ability to understand the principles of governance contributed to the consolidation and stabilization of the empire he had expanded. Beyond military expansion, Akbar also strengthened Mughal rule by bringing Rajput rulers into the Mughal court through appointments and marriage alliances. His marriage to the Rajput princess Kachhwaha, Mariam-uz-Zamani, brought him into closer relations with the Hindu nobility and had important political consequences for his relations with the Rajputs. Their son, Jahangir, became the next Mughal emperor, inheriting Rajput ancestry through his mother.

The wedding of Frederick V of the Palatinate (1596–1632) and Princess Elizabeth (1596–1662), daughter of King James VI and I, was celebrated in London in February 1613. There were fireworks, masques (small, choreography-based plays), tournaments, and a mock-sea battle or naumachia. Preparations involved the construction of a "Marriage room", a hall adjacent to the 1607 Banqueting House at Whitehall Palace. The events were described in various contemporary pamphlets and letters.

The Mapuche, also known as Araucanians, are a group of Indigenous inhabitants of south-central Chile and southwestern Argentina, including parts of Patagonia. The collective term refers to a wide-ranging ethnicity composed of various groups who share a common social, religious, and economic structure, as well as a common linguistic heritage as Mapudungun speakers. Their homelands once extended from Choapa Valley to the Chiloé Archipelago and later spread eastward to Puelmapu, a land comprising part of the Argentine pampa and Patagonia. Today, the Mapuche represent 77.16% of Chile’s indigenous peoples and about 8.8% of the total national population. The Mapuche are concentrated in the Araucanía region. Many have migrated from rural areas to the cities of Santiago and Buenos Aires to pursue economic opportunities. Around 92% of the Mapuches are from Chile.

The national flag of the United States of America, often referred to as the American flag or the U.S. flag, consists of thirteen horizontal stripes, alternating red and white starting with red, with a blue rectangle in the canton bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows, where rows of six stars alternate with rows of five stars. The 50 stars on the flag form a constellation, representing the 50 U.S. states united, while the 13 stripes represent the thirteen British colonies that won independence in the American Revolutionary War.

The American Revolutionary War, also known as the Revolutionary War or American War of Independence or simply the American Revolution, was the armed conflict that comprised the final eight years of the broader American Revolution, in which American Patriot forces organized as the Continental Army and, commanded by George Washington, defeated the British Army. The conflict was fought in North America, the Caribbean, and the Atlantic Ocean. The war's outcome seemed uncertain for most of the war, but Washington and the Continental Army's decisive victory in the Siege of Yorktown in 1781 led King George III and the Kingdom of Great Britain to negotiate an end to the war. In 1783, in the Treaty of Paris, the British monarchy acknowledged the independence of the Thirteen Colonies, leading to the establishment of the United States as an independent and sovereign nation.

On 14 February 1779 British explorer Captain James Cook was killed as he attempted to kidnap Kalaniʻōpuʻu, the ruling chief (aliʻi nui) of the island of Hawaii, and hold him hostage for the return of a cutter which Hawaiians had stolen. As Cook and his men attempted to take the chief to his ship, they were confronted by a crowd of Hawaiians at Kealakekua Bay seeking to prevent Kalaniʻōpuʻu leaving. In the ensuing confrontation, Cook, four British marines and 17 Hawaiians were killed. In January 1778, during his third Pacific voyage, Cook had become the first known European to visit the Hawaiian Islands. His expedition returned to the islands in January 1779 and anchored in Kealakekua Bay. Relations between the British and Hawaiians were initially good, as Cook's expedition had arrived during the Makahiki season, a celebration of fertility and the god Lono. Although the Hawaiians called Cook "Lono" and treated him with reverence, scholars are divided on whether they considered him a deity. Cook's expedition left the bay on 4 February but were forced to return a week later after one of its ships was damaged in a gale. However, the Makahiki season had ended and tensions between the British and Hawaiians increased. A series of thefts by Hawaiians and violent reprisals by the British culminated in the theft of the cutter and Cook's attempt to take Kalaniʻōpuʻu hostage for its return. After Cook was stabbed and beaten to death in the following affray, his body was dismembered by the Hawaiians and distributed to their chiefs – a mark of respect for a high-ranking adversary. Following reprisals by the British in which several more Hawaiians were killed, Cook's remains were returned to the British and were buried at sea with full military honours. Following Cook's death, he was widely celebrated in Europe as a heroic explorer and humanitarian. However, some crew member accounts of his final voyage depicted him as hot-tempered and responsible for the mistreatment of indigenous people. For some decades after his death, many Hawaiians venerated him as an ancestral being, but as Christianity spread in Hawaii, his death was increasingly viewed as divine punishment.

The French Revolutionary Wars (French: Guerres de la Révolution française) were a series of sweeping military conflicts resulting from the French Revolution that lasted from 1792 until 1802. They pitted France against Great Britain, Austria, Prussia, Russia, and several other countries. The wars are divided into two periods: the War of the First Coalition (1792–1797) and the War of the Second Coalition (1798–1802). Initially confined to Europe, the fighting gradually assumed a global dimension. After a decade of constant warfare and aggressive diplomacy, France had conquered territories in the Italian peninsula, the Low Countries, and the Rhineland with its very large and powerful military which had been totally mobilized for war against most of Europe with mass conscription of the vast French population. French success in these conflicts ensured military occupation and the spread of revolutionary principles over much of Europe. As early as 1791, the other monarchies of Europe looked with outrage at the revolution and its upheavals; and they considered whether they should intervene, either in support of King Louis XVI to prevent the spread of revolution, or to take advantage of the chaos in France. Austria stationed significant troops on its French border and together with Prussia issued the Declaration of Pillnitz, which threatened severe consequences should anything happen to King Louis XVI and Queen Marie Antoinette. After Austria refused to recall its troops from the French border and to back down on the perceived threat of using force, France declared war on Austria and Prussia in the spring of 1792; both countries responded with a coordinated invasion that was turned back at the Battle of Valmy in September. This victory emboldened the National Convention to abolish the monarchy. A series of victories by the French Revolutionary Army abruptly ended with defeat at Neerwinden in the spring of 1793. The French suffered additional defeats in the remainder of the year, and these difficult times allowed the Jacobins to rise to power and impose the Reign of Terror to unify the nation. In 1794 the situation improved dramatically for the French as huge victories at Fleurus against the Austrians and Dutch and against the Spanish at the Battle of the Black Mountain signalled the start of a new stage in the wars. By 1795, the French had captured the Austrian Netherlands and the Dutch Republic. The French also put Spain and Prussia out of the war with the Peace of Basel. A hitherto unknown general named Napoleon Bonaparte began his first campaign in Italy in April 1796. In less than a year, French armies under Napoleon destroyed the Habsburg forces and evicted them from the Italian peninsula, winning almost every battle and capturing 150,000 prisoners. With French forces marching toward Vienna, the Austrians sued for peace and agreed to the Treaty of Campo Formio on 17 October 1797, ending the First Coalition against the Republic. The War of the Second Coalition began in 1798 with the French invasion of Egypt, headed by Napoleon. The allies took the opportunity presented by the French effort in the Middle East to regain territories lost from the First Coalition. The war began well for the allies in Europe, where they gradually pushed the French out of Italy and invaded Switzerland – racking up victories at the battles of Magnano, Cassano, and Novi along the way. However, their efforts largely unraveled with the French victory at Zurich in September 1799, which caused Russia to drop out of the war. Meanwhile, Napoleon's forces won a series of battles at the Pyramids, Mount Tabor, and Abukir but lost a crucial Siege of Acre in 1799 that turned the tide of the campaign. The perceived victories in Egypt further enhanced Napoleon's popularity back in France, and he returned to France in the autumn of 1799, but leaving the French army in a desperate situation in Egypt as the Egyptian campaign ultimately ended in failure. Furthermore, the Royal Navy had won the Battle of the Nile in 1798, further strengthening British control of the Mediterranean and weakening the French Navy for the rest of the Revolutionary and Napoleonic Wars. Napoleon's arrival from Egypt led to the fall of the French Directory in the Coup of 18 Brumaire, with Napoleon installing himself as consul. Napoleon then reorganized the French army and launched an assault against the Austrians in Italy during the spring of 1800. This brought a decisive French victory at the Battle of Marengo in June 1800, after which the Austrians withdrew from the peninsula once again. Another crushing French victory at Hohenlinden in Bavaria forced the Austrians to seek peace for a second time, leading to the Treaty of Lunéville in 1801. With Austria and Russia out of the war, Britain found itself increasingly isolated and agreed to the Treaty of Amiens with Napoleon's government in 1802, concluding the Revolutionary Wars. However, the lingering tensions proved too difficult to contain, and the Napoleonic Wars began over a year later with the formation of the Third Coalition, continuing the series of Coalition Wars.

Đorđe Petrović (pronounced [dʑôːrdʑe pětrovitɕ]; Serbian: Ђорђе Петровић; 14 November [O.S. 3 November] 1768 – 25 July [O.S. 13 July] 1817), known by the sobriquet Karađorđe (pronounced [kâradʑoːrdʑe]; Serbian: Карађорђе, lit. 'Black George'), was a Serbian revolutionary leader who led a struggle against the Ottoman Empire during the First Serbian Uprising. Karađorđe Petrović held the title of Grand Vožd of Serbia from 14 February 1804 to 3 October 1813. Born into an impoverished family in the Šumadija region of Ottoman Serbia, Karađorđe distinguished himself during the Austro-Turkish War of 1788–1791 as a member of the Serbian Free Corps, a Habsburg militia of ethnic Serbs, armed and trained by the Austrians to fight the Ottoman Turks. Fearing retribution following the Austrians' and Serb rebels' defeat in 1791, he and his family fled to the Austrian Empire, where they lived until 1794, when a general amnesty was declared. Karađorđe subsequently returned to Šumadija and became a livestock merchant. In 1796, the rogue governor of the Sanjak of Vidin, Osman Pazvantoğlu, invaded the Pashalik of Belgrade, and Karađorđe fought alongside the Ottomans to quash the incursion. In early 1804, following a massacre of Serb chieftains by renegade Ottoman janissaries known as Dahis, the Serbs of the Pashalik rebelled. Karađorđe was unanimously elected to lead the uprising against the Dahis at an assembly of surviving chiefs in February 1804. Within six months, most of the Dahi leaders had been captured and executed by Karađorđe's forces, and by 1805, the final remnants of Dahi resistance had been crushed. Karađorđe and his followers demanded far-reaching autonomy, which Sultan Selim III interpreted as but the first step towards complete independence. Selim promptly declared jihad against the rebels and ordered an army to march into the Pashalik. The Ottomans suffered a string of defeats at the hands of Karađorđe's forces. By 1806, the rebels had captured all the major towns in the Pashalik, including Belgrade and Smederevo, and expelled their Muslim inhabitants. Burdened by the demands of the Russo-Turkish War of 1806–1812, Selim offered the Serbs extensive autonomy. However, Karađorđe refused in light of Russia's avowal to aid the rebels should they continue fighting. Frequent infighting, together with Napoleon's invasion of Russia in 1812, weakened the rebels, and the Ottomans were able to reverse many of their gains. Karađorđe was forced to flee Serbia in October 1813 and Belgrade fell later that month, bringing the First Serbian Uprising to a close. He and his followers sought refuge in the Austrian Empire, but were arrested. Despite Ottoman requests for extradition, the Austrians handed Karađorđe over to the Russians, who offered him refuge in Bessarabia. There, he joined the Greek secret society known as Filiki Eteria, which planned to launch a pan-Balkan uprising against the Ottomans. Karađorđe returned to Serbia in secret in July 1817, but was killed shortly thereafter by agents of Miloš Obrenović, a rival rebel leader, who was concerned that Karađorđe's reappearance would cause the Ottomans to renege on the concessions they had agreed to following the Second Serbian Uprising of 1815. Karađorđe is considered the founder of the house of Karađorđević, which ruled Serbia in several intervals during the 19th and 20th centuries. His murder resulted in a violent, decades-long feud between his descendants and those of the Obrenovićfamily, with the Serbian throne changing hands several times.

James Knox Polk (; November 2, 1795 – June 15, 1849) was the 11th president of the United States, serving from 1845 to 1849. A protégé of Andrew Jackson and a member of the Democratic Party, he was an advocate of American expansionism and Jacksonian democracy. Polk saw Texas join the Union in his first year in office; the annexation of the formerly independent republic, which had declared independence from Mexico, was one of the precipitating causes that soon led the U.S. into the Mexican–American War. The settlement of that war expanded American territory to the Pacific Ocean. During his term, the dispute with the United Kingdom over the Oregon Territory was resolved as well, creating the present U.S.-Canadian border. After building a successful law practice in Tennessee, Polk was elected to its state legislature in 1823 and then to the United States House of Representatives in 1825, becoming a strong supporter of Jackson. Following his tenure as chairman of the Ways and Means Committee, he became Speaker of the House in 1835, the only person to serve both as Speaker and U.S. president. Polk left Congress to run for governor of Tennessee, winning in 1839 but losing in 1841 and 1843. He was a dark-horse candidate in the 1844 presidential election as the Democratic Party nominee. Polk entered his party's convention as a potential nominee for vice president but emerged as a compromise to head the ticket when no presidential candidate could gain the necessary two-thirds majority. In the general election, he narrowly defeated Henry Clay of the Whig Party and pledged to serve only one term. After a negotiation fraught with the risk of war, Polk reached a settlement with Great Britain over the disputed Oregon Country, with the territory for the most part divided along the 49th parallel. He oversaw U.S. victory in the Mexican–American War, resulting in Mexico's cession of the entirety of the American Southwest. He secured a substantial reduction of American tariff rates with the Walker tariff of 1846. The same year, he achieved his other major goal, the reestablishment of the Independent Treasury system. True to his campaign pledge to serve one term (one of the few U.S. presidents to make and keep such a pledge), Polk left office in 1849 and returned to Tennessee, where he died of cholera soon afterward. Though he has become relatively obscure, scholars have ranked Polk in the middle to upper tier of U.S. presidents, often in the top ten, largely for his ability to promote and achieve the major items on his presidential agenda. At the same time, he has been criticized for leading the country into a war with Mexico that exacerbated sectional divides. A property owner who used slave labor, he kept a plantation in Mississippi and increased his slave ownership during his presidency. Polk's policy of territorial expansion saw the nation reach the Pacific coast and almost all its contiguous borders. He helped make the U.S. a nation poised to become a great power, but his policies gravely exacerbated divisions between the free and slave states, setting the stage for the American Civil War.

Great Ormond Street Hospital (GOSH, formerly the Hospital for Sick Children) is a children's hospital in the London Borough of Camden, and a part of Great Ormond Street Hospital for Children NHS Foundation Trust. The hospital is situated between Great Ormond Street and Guilford Street, just inside Holborn's traditional boundary with Bloomsbury. The hospital is the largest centre for child heart surgery in Britain and one of the largest centres for heart transplantation in the world. In 1962, it developed the first heart and lung bypass machine for children. With children's book author Roald Dahl, it developed an improved shunt valve for children with hydrocephalus, and non-invasive (percutaneous) heart valve replacements. Great Ormond Street performed the first UK clinical trials of the rubella vaccine, and the first bone marrow transplant and gene therapy for severe combined immunodeficiency. The hospital is the largest centre for research and postgraduate teaching in children's health in Europe. In 1929, J. M. Barrie donated the copyright to Peter Pan to the hospital.

Texas is a state in the United States. Located in the south-central part of the country, it borders Louisiana, Arkansas, Oklahoma, and New Mexico. It also borders Mexico along the Rio Grande, and has a coastline on the Gulf of Mexico. Covering 268,596 square miles (695,660 km2) and with an estimated population of over 31.7 million residents in 2025, it is the second-largest state by both area and population. Texas is nicknamed the "Lone Star State" for the single star depicted on the Republic of Texas flag in 1836 during the Texas war for independence from Mexico, symbolizing Texans' enduring independent spirit and distinct national identity. The lone star design was originally flown in 1819 during the Long Expedition, an early attempt to liberate Texas from Spanish imperial rule.

Oregon ( ORR-ih-ghən, -⁠gon) is a state in the Pacific Northwest region of the United States. It is a part of the Western United States, with the Columbia River delineating much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42° north parallel delineates the southern boundary with California and Nevada. The western boundary is formed by the Pacific Ocean. Oregon has been home to many indigenous nations for thousands of years. The first European traders, explorers, and settlers began exploring what is now Oregon's Pacific coast in the early to mid-16th century. As early as 1564, the Spanish began sending vessels northeast from the Philippines, riding the Kuroshio Current in a sweeping circular route across the northern part of the Pacific. In 1592, Juan de Fuca undertook detailed mapping and studies of ocean currents in the Pacific Northwest, including the Oregon coast as well as the strait now bearing his name. The Lewis and Clark Expedition traversed Oregon in the early 19th century, and the first permanent European settlements in Oregon were established soon afterward by trappers and fur traders. The United States received joint occupation rights to the region from the United Kingdom through the Treaty of 1818. The Oregon Treaty of 1846 formally brought Oregon under American sovereignty, and the Oregon Territory was created two years later. Oregon was admitted to the United States on February 14, 1859, becoming the 33rd state. Today, with 4.2 million people over 98,000 square miles (250,000 km2), Oregon is the ninth-largest and 27th-most populous U.S. state. The capital, Salem, is the third-most populous city in Oregon, with 175,535 residents. Portland, with 652,503, ranks as the 26th among U.S. cities. The Portland metropolitan area, which includes neighboring counties in Washington, is the 26th largest metro area in the nation, with a population of 2,512,859. Oregon is also one of the most geographically diverse states in the U.S., marked by volcanoes, abundant bodies of water, dense evergreen and mixed forests, as well as high deserts and semi-arid shrublands. At 11,249 feet (3,429 m), Mount Hood is the state's highest point. Oregon's only national park, Crater Lake National Park, comprises the caldera surrounding Crater Lake, the deepest lake in the U.S. The state is also home to the single largest organism in the world, Armillaria ostoyae, a fungus that runs beneath 2,200 acres (8.9 km2) of the Malheur National Forest. Oregon's economy has historically been powered by various forms of agriculture, fishing, logging, and hydroelectric power. Oregon is the top lumber producer of the contiguous U.S., with the lumber industry dominating the state's economy during the 20th century. Technology is another one of Oregon's major economic forces, beginning in the 1970s with the establishment of the Silicon Forest and the expansion of Tektronix and Intel. Sportswear company Nike, Inc., headquartered in Beaverton, is the state's largest public corporation with an annual revenue of $46.7 billion.

Alexander Graham Bell ( ; born Alexander Bell; March 3, 1847 – August 2, 1922) was a Scottish-born Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885. Bell's father, grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work. His research on hearing and speech further led him to experiment with hearing devices, which eventually culminated in his being awarded the first U.S. patent for the telephone, on March 7, 1876. Bell considered his invention an intrusion on his real work as a scientist and refused to have a telephone in his study. Many other inventions marked Bell's later life, including ground-breaking work in optical telecommunications, hydrofoils, and aeronautics. Bell also had a strong influence on the National Geographic Society and its magazine while serving as its second president from 1898 to 1903. For National Geographic, Bell wrote under the pseudonym H. A. Largelamb, an anagram of his name. Beyond his work in engineering, Bell had a deep interest in the emerging science of heredity. His work in this area has been called "the soundest, and most useful study of human heredity proposed in nineteenth-century America ... Bell's most notable contribution to basic science, as distinct from invention."

The War of the Pacific (Spanish: Guerra del Pacífico), also known by multiple other names, was a war between Chile and a Bolivian–Peruvian alliance from 1879 to 1884. Fought over Chilean claims on coastal Bolivian territory in the Atacama Desert, the war ended with victory for Chile, which gained a significant amount of resource-rich territory from Peru and Bolivia. The war demonstrated Chile's military-technological superiority over its opponents at the time. The direct cause of the war was a nitrate taxation dispute between Bolivia and Chile, with Peru being drawn in due to its secret alliance with Bolivia. Some historians have pointed to deeper origins of the war, such as the interest of Chile and Peru in the nitrate business, a long-standing rivalry between Chile and Peru for regional hegemony, as well as the political and economical disparities between the stability of Chile and the volatility of Peru and Bolivia. In February 1878, Bolivia increased taxes on the Chilean mining company Compañía de Salitres y Ferrocarril de Antofagasta (CSFA), in violation of the Boundary Treaty of 1874 which established the border between both countries and prohibited tax increases for mining. Chile protested the violation of the treaty and requested international arbitration, but the Bolivian government, presided by Hilarión Daza, considered this an internal issue subject to the jurisdiction of the Bolivian courts. Chile insisted that the breach of the treaty would mean that the territorial borders denoted in it were no longer settled. Despite this, Hilarión Daza rescinded the license of the Chilean company, seized its assets and put it up for auction. On the day of the auction, 14 February 1879, Chile's armed forces occupied without resistance the Bolivian port city of Antofagasta, which was mostly inhabited by Chilean miners. War was declared between Bolivia and Chile on 1 March 1879, and between Chile and Peru on 5 April 1879. Battles were fought on the Pacific Ocean, in the Atacama Desert, the Peruvian deserts, and the mountainous interior of Peru. For the first five months, the war played out in a naval campaign, as Chile struggled to establish a marine resupply corridor for its forces in the world's driest desert. Afterwards, Chile's land campaign overcame the Bolivian and Peruvian armies. Bolivia withdrew after the Battle of Tacna, on 26 May 1880, leaving allied Peru fighting alone for most of the war. Chilean forces occupied Peru's capital Lima in January 1881. Remnants and irregulars of the Peruvian army waged a guerrilla war but could not prevent war-weary Peruvian factions from reaching a peace deal with Chile involving territorial cessions. Chile and Peru signed the Treaty of Ancón on 20 October 1883. Bolivia signed a truce with Chile in 1884. Chile acquired the Peruvian territory of Tarapacá, the disputed Bolivian department of Litoral (turning Bolivia into a landlocked country), and temporary control over the Peruvian provinces of Tacna and Arica. In 1904, Chile and Bolivia signed the Treaty of Peace and Friendship, which established definite boundaries. The 1929 Tacna–Arica compromise gave Arica to Chile and Tacna to Peru.

A voting machine is a machine used to record votes in an election without paper. The first voting machines were mechanical but it is increasingly more common to use electronic voting machines. Traditionally, a voting machine has been defined by its mechanism, and whether the system tallies votes at each voting location, or centrally. Voting machines should not be confused with tabulating machines, which count votes done by paper ballot.

The British Army is the land warfare force of the United Kingdom responsible for defending the UK, the British Overseas Territories and Crown Dependencies. The British Army, founded in 1707, has seen involvement in most of the world's major wars throughout history, including both world wars.

The United States Department of Commerce and Labor was a short-lived Cabinet department of the United States government, which was concerned with fostering and supervising big business. It existed from 1903 to 1913. The United States Department of Commerce is its successor agency, and it also is the predecessor of the United States Department of Labor.

Arizona is a landlocked state in the Southwestern United States, sharing the Four Corners region with Colorado, New Mexico, and Utah. It also borders Nevada to the northwest and California to the west, and shares an international border with the Mexican states of Sonora and Baja California to the south and southwest. Its capital and largest city is Phoenix, which is the most populous state capital and fifth-most populous city in the United States. Arizona is divided into 15 counties.

The United States Navy (USN) is the maritime service branch of the United States Armed Forces and is designated as the navy of the United States in the Constitution. With 290 combat vessels, it is the world's second largest navy, behind the People's Liberation Army Navy, and by far the largest by displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. The Navy is a part of the Department of Defense and is one of six armed forces and eight uniformed services of the United States.

The Russian Soviet Federative Socialist Republic was a revolutionary, and later, communist state from 1917 to 1922, and afterwards the largest and most populous constituent republic of the Soviet Union (USSR) from 1922 to 1991, until becoming a sovereign part of the Soviet Union with priority of Russian laws over Union-level legislation in 1990 and 1991, the last two years of the existence of the USSR. The Russian SFSR was composed of sixteen smaller constituent units of autonomous republics, five autonomous oblasts, ten autonomous okrugs, six krais and forty oblasts. Russians formed the largest ethnic group. The capital of the Russian SFSR and the USSR as a whole was Moscow and the other major urban centers included Leningrad, Stalingrad, Novosibirsk, Sverdlovsk, Gorky and Kuybyshev.

The Polish–Soviet War was fought primarily between the Second Polish Republic and the Russian Soviet Federative Socialist Republic, following World War I and the Russian Revolution.

The League of Women Voters (LWV) is a non-partisan American nonprofit political organization. Founded in 1920, its ongoing major activities include registering voters, providing voter information, boosting voter turnout and advocating for voting rights. In addition, the LWV works with partners for specific campaigns including support for campaign finance reform, women's rights, health care reform and gun control.

International Business Machines Corporation, doing business as IBM, is an American multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is a publicly traded company and one of the 30 companies in the Dow Jones Industrial Average. IBM is the largest industrial research organization in the world, with 19 research facilities across a dozen countries; for 29 consecutive years, from 1993 to 2021, it held the record for most annual U.S. patents generated by a business.

The Saint Valentine's Day Massacre was the murder of seven members and associates of Chicago's North Side Gang on Saint Valentine's Day 1929. The men were gathered at a Lincoln Park, Chicago, garage when between four and six men entered, two of whom were disguised as police officers. The seven men were lined up facing a wall and shot with Thompson submachine guns and a sawed-off shotgun; seventy rounds were fired from the Thompsons, and one cartridge was fired from the shotgun. Six of the victims died immediately; one lived for a short while but refused to identify the killers.

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many engaging in total war on an unprecedented scale. World War II was the deadliest conflict in history, causing the deaths of 60 to 75 million people, a majority of whom were civilians. Millions died as a result of massacres, starvation, disease, and genocides including the Holocaust. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

The Battle of Pasir Panjang, which took place between 13 and 15 February 1942, was part of the final stage of the Empire of Japan's invasion of Singapore during World War II. The battle was initiated upon the advancement of elite Imperial Japanese Army forces towards Pasir Panjang Ridge on 13 February.

Rostov-on-Don, or simply Rostov, is a port city and the administrative centre of Rostov Oblast and the Southern Federal District of Russia. It lies in the southeastern part of the East European Plain on the Don River, 32 kilometers (20 mi) from the Sea of Azov, directly north of the North Caucasus. The southwestern suburbs of the city lie above the Don river delta. Rostov-on-Don has a population of over one million people and is an important cultural, educational, economic and logistical centre of Southern Russia.

The Tunisian campaign was a series of battles that took place in Tunisia during the North African campaign of the Second World War, between Axis and Allied forces from 17 November 1942 to 13 May 1943. The Allies consisted of British Imperial Forces, including a Greek contingent, with American and French corps. Despite initial successes by the German and Italian forces brought from the mainland and which had withdrawn into and occupied Tunisia, after their defeat in the Western Desert and the success of Operation Torch, massive supply interdiction efforts and Allied assaults from east and west led to the decisive defeat of the Axis. Over 260,000 German and Italian troops were taken as prisoners of war, including most of the Afrika Korps.

The action of 14 February 1944 refers to the sinking of a German U-boat off the Strait of Malacca during World War II by a British submarine. It was one of the few naval engagements of the Asian and Pacific theater involving German and Italian forces.

In four raids between 13 and 15 February 1945, 772 heavy bombers of the Royal Air Force (RAF) and 527 of the United States Army Air Forces (USAAF) dropped more than 3,900 tons of high-explosive bombs and incendiary devices on the German city of Dresden. The bombing and the resulting firestorm destroyed more than 1,600 acres (6.5 km2) of the city centre. Up to 25,000 people were killed. Three more USAAF air raids followed, two occurring on 2 March aimed at the city's railway marshalling yard and one smaller raid on 17 April aimed at industrial areas.

Prague, the capital and largest city of the German-occupied Protectorate of Bohemia and Moravia, was bombed several times by the Allies during World War II. The first Allied aircraft to fly over Prague was a single bomber of the French Air Force in April 1940, but it dropped propaganda leaflets, not bombs. The first bombing mission was flown by the Royal Air Force (RAF) in October 1941. Prague was then bombed three times by the United States Army Air Forces between the fall of 1944 and spring of 1945. During the Prague uprising of 5–9 May 1945, the Luftwaffe made use of bombers against the rebels.

Mostar is a city and the administrative centre of Herzegovina-Neretva Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina, and the historical capital of Herzegovina.

Franklin Delano Roosevelt, also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving US president and the only one to have served more than two terms. His first two terms centered on combating the Great Depression, while his third and fourth focused on US involvement in World War II. A member of the Democratic Party, Roosevelt served in the New York State Senate from 1911 to 1913 and as the 44th governor of New York from 1929 to 1932.

The Bank of England (BoE) is the central bank of the United Kingdom and the model on which most modern central banks have been based. Established in 1694 to act as the English Government's banker and debt manager, and still one of the bankers for the government of the United Kingdom, it is the world's second oldest central bank, after Sweden's (1668). It is considered to be one of the world's "Big Four" central banks.

The Knesset is the unicameral legislature of Israel.

The First Indochina War, known alternatively as the French Indochina War, was fought in French Indochina between the French Union and the Viet Minh and their respective allies, from 19 December 1946 until 11 August 1954. Most of the engagements of this conflict occurred in Vietnam.

The discoveries of the 118 chemical elements known to exist as of 2026 are presented here in chronological order. The elements are listed generally in the order in which each was first defined as the pure element, as the exact date of discovery of most elements cannot be accurately determined. There are plans to synthesize more elements, and it is not known how many elements are possible.

Kabul is the capital and largest city of Afghanistan. It is within the jurisdiction of Kabul District and has an estimated population of 5,333,284 people. Located in the eastern half of the country, forming part of the Kabul Province, the city is administratively divided into five zones and 22 municipal districts. The current mayor of the city is Mawlawi Abdul Rashid.

Knoxville is a city in Knox County, Tennessee, United States, and its county seat. Located on the Tennessee River within the Appalachian Mountains, it is the largest city in the Grand Division of East Tennessee. Knoxville had a population of 190,740 at the 2020 census, making it the third-most-populous city in Tennessee. The Knoxville metropolitan area has an estimated 958,000 residents.

Union Carbide Corporation (UCC) is an American chemical company headquartered in Seadrift, Texas. It has been a wholly owned subsidiary of Dow Chemical Company since 2001. Union Carbide produces chemicals and polymers that undergo one or more further conversions by customers before reaching consumers. Some are high-volume commodities and others are specialty products. Markets served include paints and coatings, packaging, wire and cable, household products, personal care, pharmaceuticals, automotive, textiles, agriculture, and oil and gas. The company is a former component of the Dow Jones Industrial Average.

Iran, officially the Islamic Republic of Iran, and historically known as Persia, is a country in West Asia. It borders Iraq to the west; Turkey, Azerbaijan, and Armenia to the northwest; the Caspian Sea to the north, Turkmenistan to the northeast; Afghanistan to the east; Pakistan to the southeast; and the Gulf of Oman and the Persian Gulf to the south. With a population of over 92 million, Iran ranks 17th globally in both geographic size and population. It is divided into five regions with 31 provinces. Tehran is the nation's capital and largest city and serves as its primary economic center.

Indian Airlines Flight 605 was a scheduled domestic passenger flight from Bombay to Bangalore. On 14 February 1990, an Airbus A320 registered as VT-EPN, crashed onto a golf course while attempting to land at Bangalore, killing 92 of 146 people on board.

Voyager 1 is a space probe launched by NASA on September 5, 1977, as part of the Voyager program, to study the outer Solar System and the interstellar space beyond the Sun's heliosphere. It was launched 16 days after its twin, Voyager 2. It communicates through the NASA Deep Space Network (DSN) to receive routine commands and to transmit data to Earth. Real-time distance and velocity data are provided by NASA and JPL. At a distance of 171.19 AU as of August 2026, it is the most distant human-made object from Earth. Voyager 1 is projected to reach a distance of one light day from Earth in November 2026.

Rail freight transport is the use of railways and trains to transport cargo, as opposed to passengers.

Near Earth Asteroid Rendezvous – Shoemaker, renamed after its 1996 launch in honor of planetary scientist Eugene Shoemaker, was a robotic space probe designed by the Johns Hopkins University Applied Physics Laboratory for NASA to study the near-Earth asteroid Eros from close orbit over a period of a year. It was the first spacecraft to orbit an asteroid and land on it successfully. In February 2000, the mission closed in on the asteroid and orbited it. On February 12, 2001, Shoemaker touched down on the asteroid and was terminated just over two weeks later.

In the Iraq disarmament crisis of the early 2000s, Iraq, led by president Saddam Hussein, was pressured by the United States and its other adversaries to destroy alleged stockpiles of weapons of mass destruction (WMD)—biological, chemical, and nuclear. In the 1980s, Iraq had programs to produce all three, but in the 1990s, the programs were ended, and the WMD were destroyed. The U.S.' rationale for its 2003 invasion of Iraq was that the country still had WMD, and would use them.

Moscow is the capital and largest city of Russia, situated on the Moskva River in Central Russia. The city has a population estimated at more than 13 million residents within city limits, more than 19.1 million residents in the urban area, and more than 21.5 million residents in the metropolitan area. The city covers an area of 2,511 square kilometers (970 sq mi); the urban area covers 5,891 square kilometers (2,275 sq mi); and the metropolitan area covers more than 26,000 square kilometers (10,000 sq mi). Moscow is among the world's largest cities: the most populous city entirely in Europe, the largest urban and metropolitan areas in Europe, and the largest city by land area on the European continent.

Beirut is the capital and largest city of Lebanon. As of 2025, Greater Beirut has a population of 2.4 million, just under half of Lebanon's population, which makes it the twelfth-largest city in the Levant region and the sixteenth-largest in the Arab world. The city is situated on a peninsula at the midpoint of Lebanon's Mediterranean coast. Beirut has been inhabited for more than 5,000 years, making it one of the oldest cities in the world.

Al-Qaeda is a pan-Islamist militant organization led by Sunni Islamist jihadists who self-identify as a vanguard spearheading a global Islamist revolution to unite the Muslim world under a supra-national Islamic caliphate. Its membership is primarily composed of Arabs, with additional representation from other ethnic groups. Al-Qaeda has mounted attacks on civilian and military targets of the U.S. and its allies; such as the 1998 U.S. embassy bombings, the USS Cole bombing, and the September 11 attacks. It has been designated a terrorist organization by the United Nations and over two dozen countries around the world.

YouTube is an American online video-sharing platform owned by Google. YouTube was founded on February 14, 2005, by Chad Hurley, Jawed Karim, and Steve Chen who were all former employees at PayPal. Headquartered in San Bruno, California, it is the second-most-visited website in the world, after Google itself. In January 2024, YouTube had reached more than 2.7 billion monthly active users, who collectively watched more than one billion hours of video every day. As of May 2019, videos were being uploaded to the platform at a rate of more than 500 hours of video per minute, and as of mid-2024, there were approximately 14.8 billion videos in total.

The 2008 Northern Illinois University shooting was a school shooting that took place on Thursday, February 14, 2008, at Northern Illinois University (NIU) in DeKalb, Illinois. Steven Kazmierczak, 27 years old and a 2006 NIU graduate, opened fire with a shotgun and three pistols in a crowd of students on campus, killing 5 students and injuring 17 more people, before fatally shooting himself.

The Arab Spring was a series of pro-democracy anti-government protests, uprisings, and armed rebellions that spread across much of the Arab world in the early 2010s. It began in Tunisia in response to the death of Mohamed Bouazizi by self-immolation. From Tunisia, the protests initially spread to five other countries: Libya, Egypt, Yemen, Syria and Bahrain. The rulers deposed include: Zine El Abidine Ben Ali of Tunisia, Muammar Gaddafi of Libya, and Hosni Mubarak of Egypt, all in 2011; and Ali Abdullah Saleh of Yemen in 2012. Major uprisings and social violence occurred, including riots, civil wars, or insurgencies. Sustained street demonstrations took place in Morocco, Iraq, Algeria, Lebanon, Jordan, Kuwait, Oman and Sudan. Minor protests took place in Djibouti, Mauritania, Palestine, Saudi Arabia and the Western Sahara. A major slogan of the demonstrators in the Arab world is ash-shaʻb yurīd isqāṭ an-niẓām!.

Jacob Gedleyihlekisa Zuma is a South African politician who served as the fourth president of South Africa from 2009 to 2018. Zuma was a former anti-apartheid activist, member of uMkhonto weSizwe, and president of the African National Congress (ANC) from 2007 to 2017. He is also the father-in-law of Eswatini king Mswati III.

On February 14, 2018, 19-year-old Nikolas Jacob Cruz walked into his former school, Marjory Stoneman Douglas High School, in Parkland, Florida, and fatally shot seventeen people including fourteen students and three teachers, while wounding another 17. Cruz fled the scene on foot by blending in with the students and was arrested without incident approximately one hour and twenty minutes later in nearby Coral Springs. Police and prosecutors investigated "a pattern of disciplinary issues and unnerving behavior". The incident is the deadliest mass shooting at a high school in US history, surpassing the 1999 Columbine High School massacre.

The Ngarbuh massacre took place in northwestern Cameroon on 14 February 2020 during the Anglophone Crisis, and resulted in the murder of 21 civilians, including 13 children, by Cameroonian soldiers and armed Fulani militia.