---
node: seleucid
type: period
slug: seleucid_persia
title: "Seleucid Persia"
lead: "Seleucid Persia (330–c. 247 BC) covers Macedonian rule in Iran, from Alexander's conquest to the rise of Parthia, under the empire founded by Seleucus I Nicator. The Seleucid state itself lasted longer in Syria, but its hold on the Iranian plateau slipped away in the mid-3rd century BC."
published: 2026-07-10
updated: 2026-07-10
image_file: seleucid_persia.jpg
image_source: "https://commons.wikimedia.org/wiki/File:Coin_of_Antiochus_III,_Seleucid_King,_from_Antioch,_Yale_University_Art_Gallery,_inv._1938.6000.2817_-_YDEA_-_146884.jpg"
image_author: "anonymous"
image_license: "CC0"
---

## Overview

This period covers Macedonian rule in Iran, from Alexander's conquest in 330 BC to the rise of Parthia around 247 BC; the Seleucid state itself survived longer in Syria. After Alexander's death in 323 BC, his general Seleucus I Nicator won the eastern satrapies, and by c. 305 BC he ruled as king from Babylonia and Mesopotamia to the Indus; Syria followed after the battle of Ipsus (301 BC) and Asia Minor after Corupedium (281 BC).

## Key developments

Greek and Macedonian colonists settled across the empire, and new Greek-style cities were founded: Seleucia on the Tigris served as an eastern capital, while Ai-Khanoum in the far east shows Greek city life deep in Asia. Greek was used in administration alongside Aramaic. Cultural exchange ran both ways — Babylonian astronomy, Iranian administrative tradition, and eastern cults entered the Greek world. In a famous bargain of c. 303 BC, Seleucus traded the Indus provinces to the Mauryan emperor Chandragupta for 500 war elephants.

## End and transition

Seleucid control of the Iranian plateau was always loose, and in the mid-3rd century BC the eastern provinces slipped away: Bactria's Greek governor declared independence, and around 247 BC the Parni chief Arsaces seized Parthia — the conventional start of the Parthian era. The Seleucids still held western Iran and Mesopotamia until the Parthian king Mithridates I took Media and Seleucia in the 140s BC.