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Seleucid Empire
The Seleucid Empire was a Hellenistic state founded by Seleucus I, one of Alexander the Great's generals, covering much of his Asian conquests. It gradually lost its eastern lands to the Parthians and was finally annexed by Rome in 63 BCE.
Key facts
| Dates | 312 – 63 BCE |
|---|---|
| Region | Mesopotamia & Levant |
| Continent | Asia |
| Capitals | Seleucia on the Tigris, Antioch |
| Founder | Seleucus I Nicator |
| Religion(s) | Ancient Greek religion, Babylonian religion, Zoroastrianism |
| Peak extent | ≈ 3.9 million km² (c. 301 BCE) – source |
Before & after
Preceded by
Macedonian Empire of Alexander the Great
Followed by
Parthian Empire Roman Republic Greco-Bactrian Kingdom Kingdom of Pergamon Hasmonean kingdom Kingdom of Commagene Characene Elymais
Sources
Dates follow widely used reference works; many ancient dates are approximate or debated. Neutral summary for general reference.