1785
Battle of Rạch Gầm-Xoài Mút
Battle · Southeast Asia
On this day
311 events in the atlas are dated to 20 January, from 330 BCE to 2026. The best known come first; below them is every one, age by age, the most significant first.
1785
Battle · Southeast Asia
1859
War · South America · 1859 – 1863
1976
Attack · Middle East
1990
Battle · Middle East
2025
Event
2025
Event · North America
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.