1541
Siege of Buda
Siege · Europe
On this day
300 events in the atlas are dated to 4 May, from 1041 to 2026. The best known come first; below them is every one, age by age, the most significant first.
1541
Siege · Europe
1864
War · North America
1886
Rebellion · North America
1919
Protest · East Asia
1942
Battle
2022
Epidemic · Europe · 2022 – 2023
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.