Five monks at Canterbury Abbey reported witnessing a strange event: the upper horn of the crescent moon appeared to split, spewing fire, sparks, and smoke, before the moon flickered rapidly. Modern astronomers have speculated this account, dated to around this time, may describe a lunar impact event, possibly the formation of the crater Giordano Bruno, though the theory remains debated.
After a night of torrential rain, the Duke of Wellington's coalition held its ground against repeated French assaults near the Belgian village of Waterloo. The late arrival of Prussian forces under Blücher tipped the battle decisively, and Napoleon's Grande Armée collapsed into rout by evening. Napoleon abdicated four days later and was exiled to Saint Helena.
As Boxer militants besieged foreign legations in Beijing, the Qing imperial court under Empress Dowager Cixi issued an imperial edict declaring war against Britain, France, Germany, Russia, Japan, the United States, and other powers. The declaration escalated a regional uprising into an international crisis that would bring an Eight-Nation Alliance invasion force to crush the rebellion within months.
A 26-year-old former textile factory worker and amateur parachutist, Tereshkova was selected from over 400 applicants for the Soviet space program's propaganda coup. Launched from Baikonur Cosmodrome, she spent almost three days orbiting Earth, enduring cramped, disorienting conditions, and returned as an instant global icon of Soviet achievement.
Meeting at the Hofburg Palace, U.S. President Jimmy Carter and Soviet leader Leonid Brezhnev signed the Strategic Arms Limitation Talks II agreement, limiting each side's intercontinental ballistic missiles, bombers, and submarine-launched missiles. Though never ratified by the U.S. Senate after the Soviet invasion of Afghanistan later that year, both nations largely observed its terms informally for years.
Sally Ride, a 32-year-old physicist, launched aboard Challenger as a mission specialist, becoming the first American woman to fly in space—twenty years after Soviet cosmonaut Valentina Tereshkova achieved the feat. Ride operated the shuttle's robotic arm to deploy and retrieve satellites, and the six-day mission drew intense media scrutiny of her gender that she found exasperating and occasionally absurd.