It was emerged after the fall of mighty Median Empire in 550 BC by one of the most brilliant military and political leaders of antiquity, Cyrus the Great.
The empire encompassed within its boundaries people of many different background, speaking diverse languages, worshipping multiple deities, living in tremendously varied environments and practicing widely differing social customs.
The traditional infrastructure in military, politics, governance, administration, culture an economics that the Persian established has had a long-lasting effect on not only Iran but also the entire Near/Middle Eastern government and their administration.
In less than 30 years, Cyrus the Great expanded the Persian Empire from Asia in the East to Eastern Europe and North Africa, including Egypt and most of the Greek territory, in the West.
Under Darius I (521-486 BC), it reached its greatest extent, stretching from the Aegean Sea to the Indus River, from Egypt to the modern central Asian Republics.
In 330 BC, Darius III was murdered by tow Persian nobles one of whom proclaims himself king of Persia in eastern Iran and Bactria.
Between 327 – 325 BC Alexander the Great completes his conquest of the Persian Empire by conquering Achaemenid-held regions of India.
Achaemenid Persian Empire (550–330 BC)
