WORLD HISTORY

Detailed explanation-1: -Besides fighting wars, Darius organized the Persian Empire. He split the empire into districts, which were used to collect taxes and to raise armies. He also made a standard system of money, weights, and measures. He was probably responsible for making Zoroastrianism the official religion.

Detailed explanation-2: -The division of the empire into provinces (satrapies) was completed by Darius I (reigned 522–486 bc), who established 20 satrapies with their annual tribute.

Detailed explanation-3: -To keep this vast domain organized, Darius divided the empire into twenty satrapies. To govern each province, he appointed a satrap who would effectively act as a lesser king. Darius and his officials set fixed annual tributes unique to each satrapy, reforming the taxation system that had been in place under Cyrus.

Detailed explanation-4: -Under Cyrus the Persians organized their empire into a series of satrapies, or governmental provinces. Each of these provinces was ruled by a governor known as a satrap, as well as a general and a secretary.

Detailed explanation-5: -The empire was divided into Upper Parthia (Parthia and Armenia) and Lower Parthia (Babylonia, Persis, Elymais).