# World map in AD 300

Source page: https://geographichistory.app/map/300/

190 states share the map in AD 300. The largest by mapped area are Roman Empire, Jin and Sasanian Empire.

Roman Empire is the largest state on the map in AD 300, a position it has held since AD 44 (before that: Han). It stays in first place until AD 396, when Sasanian Empire takes over. The five largest states hold 39% of all land with a recorded ruler. 72% of the land on the map has no recorded state. The number of states is about the same as in AD 200: 190 against 190.

## Largest states in AD 300

| State | Mapped area (km²) | Provinces |
|---|---|---|
| Roman Empire | 4,476,000 | 299 |
| Jin | 4,027,000 | 109 |
| Sasanian Empire | 2,446,000 | 57 |
| Xianbei | 2,327,000 | 19 |
| Chuban | 1,451,000 | 16 |
| Huns | 690,000 | 12 |
| Kushan | 664,000 | 16 |
| Tuyuhun | 586,000 | 4 |
| Meroe | 548,000 | 10 |
| Western Satraps | 535,000 | 22 |

## Changes since AD 200

- On the map, Jin takes the place of Han (about 4 million km²).
- On the map, Sasanian Empire takes the place of Parthia (about 2.1 million km²).
- On the map, Chuban takes the place of Xiongnu (about 580 thousand km²).
Other changes: 163 provinces changed hands.
- Chuban gained about 650 thousand km², mostly from unclaimed land and Kangju.
- Vakataka gained about 510 thousand km², mostly from Satavahana and Puzhinadu.
- Ghassanids gained about 410 thousand km², mostly from Nabatea and unclaimed land.
- Kashmir gained about 320 thousand km², mostly from Kushan.

## Battles AD 300 - AD 394

- AD 312: Milvian Bridge (Roman Wars of Succession), won by Constantine
- AD 312: Turin (Roman Wars of Succession), won by Emperor Constantine
- AD 313: Tzirallum (Roman Wars of Succession), won by Licinius
- AD 316: Cibalae (Roman Wars of Succession), won by Constantine
- AD 324: Adrianople (Roman Wars of Succession), won by Western Empire
- AD 324: Chrysopolis (Roman Wars of Succession), won by Constantine
- AD 324: Hellespont (Roman Wars of Succession), won by Emperor Constantine
- AD 328: Luoyang (Wars of the Sixteen Kingdoms Era), won by Later Zhao
- AD 351: Mursa (Later Roman Military Civil Wars), won by Emperor Constantius
- AD 357: Argentoratum (Alemannic Invasion of Roman Gaul), won by Rome
- AD 363: Ctesiphon (Later Roman-Persian Wars), won by Sassanid Empire
- AD 383: Fei River (Wars of the Sixteen Kingdoms Era), won by Jin