Middle Ages
Heian Japan
- Period
- AD 793 – AD 1187
- Duration
- approx. 394 years
- Greatest extent
- around AD 814
- Area (max.)
- approx. 244,000 km²
Period and duration
Heian Japan — according to the map data from AD 793 to AD 1187, roughly 394 years. The dates refer to the time the empire is drawn as its own territory on the world map; historians sometimes date its founding and end differently.
Greatest extent
Heian Japan — greatest extent around AD 814: the mapped borders then cover about 244,000 km², roughly 0.2% of Earth's land area. The area is calculated from the border lines of the map and is therefore an approximation.
Predecessors and successors
States that ruled the same territory directly before and after:
Before (AD 792)
- Nara Japan
After
- Kamakura Shogunate
Neighbours around AD 814
The largest states in the region at the same time:
Learn more
- Open the world map in AD 814 — tap the empire for a detailed description
- Heian Japan on Wikipedia
- All 371 empires at a glance
Borders and dates: Cliopatria / Seshat Global History Databank (CC BY 4.0). Coastlines: Natural Earth. Text: Centaurian.