301–40012 events3 regions
4th century
In the 4th century: 12 events across 3 regions, including Edict of Milan, Founding of Constantinople, Battle of the Milvian Bridge.
Events
Western and Central Europe
- Battle of the Milvian Bridge28 October 312
- Edict of MilanFebruary 313
- Division of the Roman Empire17 January 395
- End of Roman rule in Britain383–410
Eastern Europe
- The Huns conquer the Alans and the Greuthungic. 370 – 376
- Vinitharius’ war with the Antes of Bozbetween 375 and 380
Balkans and Anatolia
- Great Persecution24 February 303 – 313
- First Council of Nicaeabetween May and June 325 – between July and August 325
- Founding of Constantinople11 May 330
- Battle of Adrianople9 August 378
- Gothic War (376–382)376 – 3 October 382
- Edict of Thessalonica27 February 380
Still going on
Processes that began earlier and continued through this period
- Kyiv culturec. 200 – between 400 and 430 · Eastern Europe
- Chernyakhov culturebetween 200 and 250 – between 400 and 430 · Eastern Europe