1432
Union of Grodno
Treaty · Europe
On this day
430 events in the atlas are dated to 15 October, from 87 CE to 2026. The best known come first; below them is every one, age by age, the most significant first.
1432
Treaty · Europe
1778
Battle · North America
1883
Natural disaster · Middle East
1979
War · Mesoamerica and the Caribbean · 1979 – 1992
2017
Election · Central Asia
2018
Event
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.