Time Astra

On this day

20 December

418 events in the atlas are dated to 20 December, from 205 BCE to 2025. The best known come first; below them is every one, age by age, the most significant first.

The best known

From every age and part of the world

Antiquity

to 500 CE · 1 event

The Middle Ages

501 – 1500 CE · 12 events

Early modern times

1501 – 1800 · 18 events

The 19th century

1801 – 1900 · 37 events

The 20th century

1901 – 2000 · 204 events

The 21st century

since 2001 · 146 events

About the dates

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.

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