...the Persians never even had a world empire...
http://en.wikipedia.org/wiki/Achaemenid_Persian_Empire
The Achaemenid Empire or Achaemenid Persian Empire (Persian: ????????? IPA: [ha??mane?ij?n]) (550330 BC) was amongst the first Persian Empires that ruled over significant portions of Greater Iran, and followed the Iranian Median Empire. At the height of its power, the Iranian Achaemenid Empire encompassed approximately 7.5 million square kilometers and became the largest empire of the ancient world.
The empire was forged by Cyrus the Great, and spanned three continents, including territories of Afghanistan and Pakistan, parts of Central Asia, Asia Minor, Thrace, much of the Black Sea coastal regions, Iraq, northern Saudi Arabia, Jordan, Israel, Lebanon, Syria, and all significant population centers of ancient Egypt as far west as Libya. (Cyrus the Great was killed in 530 BC during a battle in Kapisa, northern Afghanistan?[1]) It is noted in western history as the foe of the Greek city states in the Greco-Persian Wars, for freeing the Jews from their Babylonian captivity, and for instituting Aramaic as the empire's official language. It fell during the Wars of Alexander the Great in 330 BC. Because of the Empire's vast extent and long endurance, Persian influence upon the language, religion, architecture, philosophy, law and government of nations around the world lasts to this day.
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