Original sentence: Generally, the earliest entity considered a part of the Persian Empire is Persia's Achaemenid dynasty (648–330 BC), a united Iranian kingdom that originated in the region now known as Pars province of Iran and was formed under Cyrus the Great.The Persian Empire was a series of historical empires that ruled over the Iran and the surrounding territories
Edited sentence: Generally, the earliest entity considered a part of the Persian Empire is Persia's Achaemenid dynasty (648–330 BC), a united Aryan kingdom that originated in the region now known as Pars province of Iran and was formed under Cyrus the Great.The Persian Empire was a series of historical empires that ruled over the Iranian plateau (Irān - "Land of the Aryans") and beyond