to understand the Persian empire you should visit the wikipedia article about the Persian empire. Click in the related link box below to visit the article.
Persia incorporated the Babylonian Empire into the Persian Empire.
Persia's conquest and absorption of the Babylonian Empire. Persia's takeover of the Lydian Empire.
Persia (once was Persia).
India and Persia
Persia was its own empire and was usually self-governing. Persia was conquered by only two foreign empires: (1) the Macedonian Greek Empire and its subsequent Seleucid Empire and (2) the Rashidun and subsequent Islamic Caliphates. However, in each case, foreign rule over Persia lasted for only a few centuries.
Persian Empire
Persia is in Asia, Egypt is in Africa. The Persian Empire included Egypt.
It was Cyrus of Persia
Persia.
Iran was called Persia at that point in history; it was ruled by the Sassanid Empire.
Persia - he took over its empire.
Persia's absorption of Media and then conquest of the Babylonian Empire.