February 4

General Zhao Kuangyin declares himself Emperor Taizu of Song, founding China's Song dynasty after the fall of the Later Zhou.

Zhao Kuangyin, a respected general, seized power in a largely bloodless coup after his troops proclaimed him emperor, reportedly against his own initial wishes. His Song dynasty went on to preside over a golden age of Chinese economic growth, technological innovation, and culture, including the widespread use of paper money and gunpowder weapons.

George Washington is unanimously elected the first President of the United States by the Electoral College.

Washington's election was a formality reflecting the near-universal respect he commanded after leading the Continental Army to victory, and he remains the only U.S. president to receive 100 percent of the electoral vote. He was inaugurated weeks later in New York City, the nation's first capital.

Revolutionary France's National Convention abolishes slavery throughout French territories, though Napoleon would later reinstate it in the colonies.

The abolition decree, passed amid the radical phase of the French Revolution, was a response partly to the massive slave uprising already underway in the colony of Saint-Domingue. Napoleon reversed the policy in 1802, attempting to restore slavery in the colonies, a decision that fueled the successful Haitian independence movement.

Delegates from seceded Southern states meet in Montgomery, Alabama, to begin forming the Confederate States of America.

Delegates from six seceded states convened in Montgomery to draft a provisional constitution and elect Jefferson Davis as president just days later. Montgomery served as the Confederacy's first capital before the government relocated to Richmond, Virginia, a few months after the war began.

The Yalta Conference opens in Crimea, where Churchill, Roosevelt, and Stalin negotiate the postwar reorganization of Europe.

Meeting at a former tsarist palace in Crimea, the three Allied leaders negotiated the postwar division of Germany into occupation zones, the structure of the future United Nations, and Soviet entry into the war against Japan. The conference's compromises, particularly regarding Poland and Eastern Europe, later drew criticism for effectively ceding the region to Soviet influence.

Ceylon, later renamed Sri Lanka, gains independence from Britain within the Commonwealth.

Ceylon's independence came through a negotiated transfer of power rather than armed struggle, following a gradual process of constitutional reform under British rule. The country was renamed Sri Lanka in 1972 after adopting a new republican constitution that severed its remaining formal ties to the British crown.

The Angolan War of Independence begins, part of a broader Portuguese Colonial War that would drag on for over a decade.

Angolan nationalist guerrillas launched coordinated attacks on colonial targets in Luanda, beginning a 13-year armed struggle against Portuguese rule. The conflict, fought alongside similar independence wars in Portugal's other African colonies, eventually contributed to the collapse of Portugal's own authoritarian government in 1974 and led to Angolan independence the following year.

Newspaper heiress Patty Hearst is kidnapped from her Berkeley apartment by the radical Symbionese Liberation Army.

Hearst, granddaughter of publishing magnate William Randolph Hearst, was abducted at gunpoint from her apartment by members of a small radical group. In a bizarre turn, she later appeared in a bank robbery committed by her captors, claiming to have joined their cause, a case that became a sensational and legally contested media spectacle.

A devastating earthquake strikes Guatemala, killing more than 22,000 people and leaving over a million homeless.

The earthquake struck early in the morning while many people were still asleep in vulnerable adobe and unreinforced masonry homes, contributing to the massive death toll. The disaster prompted significant reforms to Guatemalan and regional building codes and drew large-scale international humanitarian relief efforts.

Mark Zuckerberg and Eduardo Saverin launch Facebook from a Harvard dorm room, a social network that would eventually reshape global communication.

Originally launched as a Harvard-only social network called "TheFacebook," the site expanded to other universities and eventually the general public over the following years. It grew into one of the largest companies in the world, fundamentally reshaping advertising, media, and interpersonal communication while also drawing scrutiny over privacy and misinformation.