WORLD CIVILIZATION

Detailed explanation-1: -The Achaemenid Empire or Achaemenian Empire (/əˈkiːmənɪd/; Old Persian: , Xšāça, lit. ‘The Empire’ or ‘The Kingdom’) was the ancient Iranian empire founded by Cyrus the Great in 550 BC, known also as the First Persian Empire.

Detailed explanation-2: -Ancient Iran, historically known as Persia, was the dominant nation of western Asia for over twelve centuries, with three successive native dynasties-the Achaemenid, the Parthian, and the Sasanian-controlling an empire of unprecedented size and complexity.

Detailed explanation-3: -The Achaemenid Empire, c. 550-330 BCE, or First Persian Empire, was founded in the 6th century BCE by Cyrus the Great, in Western and Central Asia. The dynasty drew its name from Achaemenes, who, from 705-675 BCE, ruled Persis, which was land bounded on the west by the Tigris River and on the south by the Persian Gulf.

Detailed explanation-4: -In the mid 1930s, the ruler of the country, Reza Shah Pahlavi, moved towards formalising the name Iran instead of Persia for all purposes.