| 559 BC | 559 - 332BC The Achaemenian Dynasty & the Great Persian Empire which was the dominant world power for over two centuries |
| 550BC | Cyrus the Great established the First World Empire |
| 525BC | Persia conquers Egypt |
| 332 BC | Alexander the Great conquers Egypt and Persia |
| 323 BC | 323-141 BC - The Seleucid Dynasty was established by one of generals of Alexander the Great |
| 247 BC | 247 BC-224 AD The Parthians conquered the Seleucids |
| 224 AD | 224 - 642 The Sasanian Dynasty |
| 570 | The Prophet Mohammad was born |
| 632 | The Prophet Mohammad died and his teachings were compiled into the Koran, the name of the holy book of Islam |
| 642 | 642 - 1220 The Arab Caliphate |
| 1220 | Mongol Era when Persia conquered by Gangis Khan |
| 1271 | The explorer Marco Polo journeyed through Persia en route to China |
| 1295 | Ghazan Khan becomes the first Mongol leader to convert to Islam |
| 1501 | 1501-1524 - Safavid Dynasty founded by Shah Ismail I who united all of Persia under Iranian leadership |
| 1795 | Qajar Dynasty |
| 1851 | 1851-1906 - The Qajars lost central Asian provinces to the Russians and were forced to give up all claims on Afghanistan to Great Britain |
| 1925 | 1925-1940 - Pahlavi Dynasty |
| 1979 | The Shah was overthrown by the Islamic Revolution ending 2,500 years of monarchy |
| 1980 | July 29: The Islamic Revolution |