World map in AD 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.

Historical map of the world in AD 300 showing the borders of states and empires — The world in AD 300, colored by ruling state. Grey land has no state recorded in the dataset.

Largest states in AD 300

State	Mapped area	Provinces
Roman Empire	4.5 million km²	299
Jin	4 million km²	109
Sasanian Empire	2.4 million km²	57
Xianbei	2.3 million km²	19
Chuban	1.5 million km²	16
Huns	690 thousand km²	12
Kushan	660 thousand km²	16
Tuyuhun	590 thousand km²	4
Meroe	550 thousand km²	10
Western Satraps	540 thousand km²	22

What changed 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).
Apart from that, 163 provinces changed hands between AD 200 and AD 300.
Chuban gained about 650 thousand km², mostly from land with no recorded state and Kangju.
Vakataka gained about 510 thousand km², mostly from Satavahana and Puzhinadu.
Ghassanids gained about 410 thousand km², mostly from Nabatea and land with no recorded state.
Kashmir gained about 320 thousand km², mostly from Kushan.
New on the map: Vakataka, Ghassanids, Kashmir, Ostrogoths and Abhira.
No longer on the map: Satavahana, Nabatea, Thamud, Saba and Osroene.

Battles, AD 300 - AD 394

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

Empire maps for this period

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