301 CE
Founding of San Marino
Founding · Europe
On this day
293 events in the atlas are dated to 3 September, from 36 BCE to 2026. The best known come first; below them is every one, age by age, the most significant first.
301 CE
Founding · Europe
1260
Battle · Middle East
1783
Treaty · Europe
1939
Battle · 1939 – 1945
1954
Event · East Asia · 1954 – 1955
2010
Natural disaster · Oceania
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.