Philip II of Spain gives orders to halt colonizing efforts in Florida.
The American navy under John Paul Jones, commanding from Bonhomme Richard, defeats and captures the British man-of-war Serapis.
A national plebiscite approves the new French constitution, but so many voters sustain that the results are suspect.
Lieutenant Zebulon Pike pays $2,000 to buy from the Sioux a 9-square-mile tract at the mouth of the Minnesota River that will be used to establish a military post, Fort Snelling.
The Lewis and Clark Expedition arrives back in St. Louis just over three years after its departure.
Confederate and Union forces clash at Mount Jackson, Front Royal and Woodstock in Virginia during the Valley campaign.
Richard Nixon responds to charges of a secret slush fund during his 'Checkers Speech.'
Gerrie Coetzee (Gerhardus Coetzee), boxer from South Africa; becomes the first boxer from the African continent to win a world heavyweight tittle (World Boxing Association).
Provisional Irish Republican Army (IRA) detonates 3,700-lb. bomb in Belfast, completely destroying the Northern Ireland forensic laboratory, injuring 20 people and damaging 700 houses.
The first public version of Mozilla Firefox browser released; originally called Phoenix 0.1 its name was changed due to trademark issues with Phoenix Technologies.