Prehistory

Achaemenid Empire (558 - 330 BC), also called "First Persian Empire"

Parthian Empire (247 BC - 224 AD), adopted both Hellenistic and Iranian customs

Sassanid Empire (224 - 651 AD), also called "Neo-Persian Empire" and "Second Persian Empire"

Elam

Iran

Kish

Teppe Sialk

Ziggurats

Zoroaster

Zoroastrianism

Zurvanism