Seleucid Empire (jan 1, 323 BC – jan 1, 83)
Description:
PersiaRetained Achaemenid taxation and administration system.
established new cities which attracted migrants and stimulated trade and communication.
The problem is they were foreigners (used-to-be Macedonians), so native Persians really didn't like them. Eventually, Persian Satraps either straight-up rebelled against them or began to organize themselves more independently.
Great time for trade, bad time for Zoroastrianism. The Seleucids didn't necessarily support Alexander of Macedon's killing of Zoroastrian priests (magi), but they weren't against it, and refrained from portraying the religion at all. This was later used against them by the Parthians.
Added to timeline:
Date:
jan 1, 323 BC
jan 1, 83
~ 406 years