Shogun Tokugawa Ieyasu mobilized daimyo from across Japan under the corvée labor system known as tenka-bushin to build Nagoya Castle, intended to guard the vital route between Kyoto and Edo. The castle's keep, topped with golden shachihoko sea-dragon ornaments, became a symbol of Tokugawa power for over two and a half centuries until much of it burned in American air raids in 1945.
In the aftermath of the second English Civil War, the New Model Army moved to eliminate political resistance to putting the king on trial. Troops stood at the entrance to the House of Commons and barred roughly 140 MPs sympathetic to a negotiated peace, an event later called 'Pride's Purge.' The remaining 'Rump Parliament' pushed forward with the unprecedented trial of a reigning monarch.
Physicist Auguste Piccard, already famous for reaching over 15,000 meters in a pressurized gondola, detailed new plans to push balloon flight further into the stratosphere for atmospheric and cosmic ray research. His designs for a sealed aluminum sphere cabin influenced later high-altitude and even early space capsule engineering.
After months of collapsing negotiations following World War II, Ho Chi Minh's Viet Minh forces attacked French positions and the city's power station in Hanoi, beginning open warfare against colonial rule. The conflict would grind on until the French defeat at Dien Bien Phu in 1954, reshaping the map of Southeast Asia and drawing the United States into the region that would soon become Vietnam.
Splashing down safely near American Samoa, Apollo 17 concluded the Apollo program and, to date, humanity's last crewed visits to the Moon. Commander Eugene Cernan, the last man to walk on the lunar surface, and geologist Harrison Schmitt had spent over three days exploring the Taurus-Littrow valley, collecting 110 kilograms of rock and soil. Cernan's final words on the surface—a promise that humans would return—remain unfulfilled more than five decades later.
Though never sold commercially, the Xerox Alto being developed and refined at Xerox PARC through the mid-1970s pioneered the graphical user interface, mouse control, and networked office computing—ideas that engineers from Apple and Microsoft would later adapt into machines that defined personal computing for the following four decades.
Just after 1 a.m., US aircraft and paratroopers struck targets across Panama in the largest American combat operation since Vietnam. President George H. W. Bush ordered the invasion after years of tension with strongman Manuel Noriega, indicted in the US on drug trafficking charges. Fighting killed several hundred Panamanians and 23 American soldiers; Noriega, who fled to the Vatican embassy, surrendered on January 3, 1990, and was flown to Miami to stand trial.
The House voted along largely partisan lines to impeach Clinton on two articles—perjury before a grand jury and obstruction of justice—making him only the second US president impeached, after Andrew Johnson in 1868. The charges arose from Clinton's false denials about his affair with White House intern Monica Lewinsky. The Senate acquitted him on both counts in February 1999, and he served out his term.