February 10

The Siege of Baghdad ends as the last Abbasid caliph surrenders to Mongol forces led by Hulegu Khan, a devastating blow to the Islamic world.

The fall of Baghdad, then a leading center of Islamic scholarship and the Abbasid capital for five centuries, brought catastrophic destruction, including the burning of its famed libraries and the deaths of hundreds of thousands of residents. Historians often cite the sack as marking the symbolic end of the Islamic Golden Age.

The Mongol siege of Baghdad ends with the surrender and execution of the last Abbasid caliph, Al-Musta'sim, at the hands of Hulagu Khan's forces.

The Mongol army sacked the city, destroying its libraries, palaces, and the House of Wisdom, and massacred a large portion of its population. The fall of Baghdad, one of the great intellectual centres of the medieval Islamic world, is often seen as marking the end of the Islamic Golden Age and the collapse of the Abbasid Caliphate's political power.

Robert the Bruce kills his rival John Comyn during a meeting at Greyfriars Church in Dumfries, Scotland.

The two men were rival claimants to the Scottish throne, and the killing took place before the church's altar, an act of sacrilege that saw Bruce excommunicated by the Pope. Weeks later Bruce had himself crowned King of Scots at Scone, launching the phase of the Wars of Scottish Independence that culminated in Scotland's victory at Bannockburn in 1314.

A tavern dispute between students and townspeople in Oxford, England, escalates into a deadly riot that leaves dozens of scholars and locals dead.

What began as a quarrel over wine at the Swindlestock Tavern spiralled into two days of violence between the town and the university, with the town summoning armed reinforcements from the surrounding countryside. In the aftermath, the university was granted extensive privileges over the town as compensation, a settlement that shaped Oxford's town-gown relations for centuries.

Vasco da Gama sets sail from Lisbon on his second voyage to India, this time commanding a heavily armed fleet to assert Portuguese dominance over the spice trade.

Da Gama's second voyage was far more heavily armed than his first, reflecting Portugal's determination to seize control of the lucrative spice trade by force if necessary. His fleet attacked rival Arab and Indian trading vessels along the route, establishing Portuguese naval dominance in the Indian Ocean for decades.

Henry Stuart, Lord Darnley, husband of Mary, Queen of Scots, is found dead by strangulation in the garden of Kirk o' Field in Edinburgh after an explosion destroyed the house where he was staying.

Darnley's death, following a mysterious blast that failed to kill him outright, was widely suspected to be murder, with the Earl of Bothwell among the chief suspects. Mary's subsequent marriage to Bothwell scandalised Scotland and contributed to the rebellion that forced her abdication the following year, reshaping the course of Scottish and English royal history.

The Treaty of Paris ends the French and Indian War, with France ceding Quebec and its North American territories to Great Britain.

The treaty ended the North American theater of the broader Seven Years' War, dramatically reshaping colonial power by removing France as a major territorial power in North America. Britain's massive new territorial gains, combined with war debts, contributed directly to the taxation disputes that sparked the American Revolution just over a decade later.

The Treaty of Paris ends the Seven Years' War, with France ceding Quebec and the rest of New France to Great Britain.

The treaty marked a decisive expansion of the British Empire, giving Britain control over nearly all of North America east of the Mississippi River. It resolved the North American theatre of the wider global conflict, sometimes called the first world war, and reshaped the colonial balance of power on the continent ahead of the American Revolution just over a decade later.

Queen Victoria marries her cousin Prince Albert of Saxe-Coburg and Gotha, beginning a famously devoted royal partnership.

Victoria and Albert's marriage, which she famously proposed herself given her status as reigning queen, became a model of domestic royal partnership that shaped Victorian-era ideals of marriage and family. Albert's influence on British politics and culture, and Victoria's prolonged mourning after his 1861 death, left a lasting mark on the era.

Queen Victoria marries her first cousin, Prince Albert of Saxe-Coburg and Gotha, at the Chapel Royal in St James's Palace, London.

The marriage became one of the most influential royal partnerships in British history, with Albert playing a major role in modernising the monarchy and promoting science, industry, and the arts, including the Great Exhibition of 1851. Victoria's choice of a white wedding dress helped popularise the tradition still followed by brides today. The couple had nine children before Albert's death in 1861.

British East India Company forces decisively defeat the Sikh Khalsa Army at the Battle of Sobraon, ending the First Anglo-Sikh War.

The battle was fought on the banks of the Sutlej River in Punjab and resulted in heavy Sikh casualties as their army was pinned against the river during the British assault. The subsequent Treaty of Lahore forced the Sikh Empire to cede territory and pay a large indemnity, setting the stage for Britain's eventual full annexation of Punjab a few years later.

The Royal Navy battleship HMS Dreadnought, the first of a revolutionary new class of all-big-gun battleships, is christened at Portsmouth.

Built in just over a year on the initiative of First Sea Lord Jackie Fisher, Dreadnought rendered all existing battleships obsolete with its uniform heavy armament and turbine propulsion. The ship gave its name to an entire generation of warships and triggered an intense naval arms race between Britain and Germany in the years leading up to the First World War.

Nationalist forces complete their conquest of Catalonia during the Spanish Civil War, sealing the border with France.

Franco's Nationalist forces completed their conquest of the Catalonia region after a grueling campaign that sent hundreds of thousands of refugees fleeing across the border into France. The fall of Catalonia effectively decided the outcome of the Spanish Civil War, which ended in Nationalist victory weeks later.

The Paris Peace Treaties are signed, formally settling peace terms between the Allies and several defeated Axis-aligned nations after World War II.

The Paris treaties formally settled reparations, border adjustments, and other postwar terms with Italy, Romania, Hungary, Bulgaria, and Finland, distinct from the earlier agreements governing Germany and Japan. They helped stabilize Europe's political map in the early Cold War period.

Allied powers, including the United Kingdom, sign the Paris Peace Treaties with Italy, Romania, Hungary, Bulgaria, and Finland, formally settling their status after the Second World War.

The treaties finalised border adjustments, reparations, and military restrictions for the former Axis-aligned states that had fought against the Allies. Britain, alongside the United States and Soviet Union, was among the principal Allied signatories, and the settlement marked one of the last major pieces of the post-war European order before Cold War divisions hardened across the continent.

Captured American U-2 pilot Francis Gary Powers is exchanged for Soviet spy Rudolf Abel in a Cold War prisoner swap on Berlin's Glienicke Bridge.

The exchange of Powers, whose U-2 spy plane had been shot down over Soviet territory in 1960, for Abel, a longtime KGB operative caught in New York, took place on a bridge connecting East and West Berlin, cementing the location's enduring reputation as a symbol of Cold War espionage exchanges.

The 25th Amendment to the U.S. Constitution is ratified, clarifying presidential succession and procedures for presidential disability.

Prompted partly by the assassination of President Kennedy and lingering questions about presidential incapacity, the amendment established clear procedures for filling a vice-presidential vacancy and for temporarily transferring presidential power during a president's incapacitation.

IBM's Deep Blue computer defeats world chess champion Garry Kasparov in a single game, the first time a computer beat a reigning champion under standard time controls.

Deep Blue's win came in the second of a six-game rematch series against Kasparov, who had defeated an earlier version of the machine the previous year. Kasparov ultimately lost the full match, a result many considered a landmark moment in the development of artificial intelligence's capabilities relative to elite human cognition.

IBM's supercomputer Deep Blue defeats world chess champion Garry Kasparov in a single game, the first time a computer had beaten a reigning world champion under standard tournament conditions.

Kasparov went on to win the six-game match overall, but the milestone stunned the chess world and reignited debate over the capabilities of artificial intelligence. IBM's improved successor system defeated Kasparov in a full rematch the following year, a result often cited as a landmark moment in the history of computing and machine intelligence.

A catastrophic winter storm triggers the Texas power crisis, causing widespread blackouts and hundreds of deaths amid a failure of the state's isolated electrical grid.

A severe winter storm overwhelmed Texas's independent power grid, which was not required to meet the same weatherization standards as other U.S. regional grids, leaving millions without electricity or heat during freezing temperatures. The crisis exposed serious vulnerabilities in the state's energy infrastructure and regulatory oversight.