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School of Raphael · Public domain
Conflict Europe

Civil Wars of the Tetrarchy

306 CE – 324 CE · 18 years

After Diocletian's abdication, his Tetrarchic system collapsed. Constantine gradually defeated all rivals, winning the Battle of the Milvian Bridge in 312 AD before his reported Christian vision, and became sole emperor in 324.

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Civil wars of the Tetrarchy on Wikipedia.

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Belligerents

The main peoples, kingdoms and states involved.

  • Constantine I
  • Maxentius, Licinius & rival emperors

Key moments

Defining events in the Civil Wars of the Tetrarchy.

  1. 312 Battle of the Milvian Bridge
  2. 324 Battle of Adrianople
  3. 324 Battle of Chrysopolis

Elsewhere in Europe at the time

Records whose own span overlaps this one, found by the same test the canvas draws with. The bar under each card is where it sits inside this one.

See the whole view

Landmark · Europe

Plitvice Lakes

3000 BCE – still standing

Polity · Europe

Roman Empire

26 BCE – 395 CE

Trade route · Europe

Amber Road

1000 BCE – 400 CE

Landmark · Europe

Giant's Causeway

3000 BCE – still standing

Polity · Europe

Saami

Attested 1500 BCE – 700 CE

Trade route · Europe

Roman Mediterranean Trade

27 BCE – 476 CE

Landmark · Europe

Danube Delta

3000 BCE – still standing

Polity · Europe

Armenia

Attested 323 BCE – 2026 CE

And in the rest of the world

Records running through the same years, on the other side of the map.

Grand Canyon Landmark · Americas 3000 BCE – still standing Meroe Polity · Middle East 500 BCE – 400 CE Mesoamerican Trade Network Trade route · Americas 1200 BCE – 1521 CE Maya City-State Wars Conflict · Americas 400 BCE – 900 CE Great Barrier Reef Landmark · Oceania 3000 BCE – still standing Hindu kingdoms Polity · South Asia 500 BCE – 1715 CE
Image credits7 pictures from Wikimedia Commons