- Feb 20 US postal service created, postage 6-12 cents depending on distance
- Mar 16 King Gustav III of Sweden is shot by Count Anckarström at a masked ball at the Opera; he dies on March 29.
- Apr 2 The Coinage Act is passed establishing the United States Mint and authorizing the $10 Eagle, $5 half-Eagle & 2.50 quarter-Eagle gold coins & silver dollar, ½ dollar, quarter, dime & half-dime
- Apr 21 Brazilian revolutionary Tiradentes, is hanged, drawn and quartered in Rio de Janeiro
- Apr 25 Guillotine first used in France, executes highwayman Nicolas Pelletier
- May 21 Mount Unzen on Japan's Shimabara Peninsula, erupts creating a tsunami, killing about 15,000; Japan's deadliest volcanic eruption
- Sep 2 September Massacres of the French Revolution: In Paris rampaging mobs slaughter 3 Roman Catholic bishops, more than two hundred priests, and prisoners believed to be royalist sympathizers.
- Sep 22 French First Republic formed by the National Convention, stripping French king of his powers
- Dec 11 France's King Louis XVI goes on trial, accused of high treason and crimes against the state
- Dec 26 Trial of French King Louis XVI, court hears the kings defense brought by Raymond Desèze
500 Marseillaisian men sing France's national anthem for 1st time
On July 30, 1792