1346
Siege of Aiguillon
Siege · Europe
On this day
2,332 events in the atlas are dated to 1 April, from 1028 to 2026. The best known come first; below them is every one, age by age, the most significant first.
1346
Siege · Europe
1889
Founding · East Asia
1945
Battle
1964
Political · South America
2020
Event · North America
2026
Epidemic
Each event is listed under the date its sources give, as its page shows it. Before 1582, and in some countries later (Britain until 1752, Russia until 1918), that is a date of the Julian calendar, as on Wikipedia’s pages for each day.