- Feb 29 February 29 is followed by February 30 in Sweden, in a move to abolish the Swedish calendar for a return to the Old style.
- Apr 7 Slave revolt in New York City: Just after midnight, 9 slaveowners are killed and 6 wounded by a group of about two dozen slaves attempting to lead a revolt; at least 21 enslaved Africans were executed, and another half dozen committed suicide [1] [2]
- Apr 22 Last sighting of Dutch ship Zuytdorp as it leaves Cape of Good Hope carrying cargo of silver with 200 crew and passengers - wreck discovered 1927 north of Perth, Western Australia [1]
- May 17 Maximilian Emanuel of Bavaria honored as "sovereign of Netherlands"