What are hysksos?

Who eventually conquered the Persians Greeks and Egyptians?

The Persians were conquered quite brutally at three distinct points in history:They were conquered by Alexander the Great of Macedon who destroyed the Achaemenid Persian Empire and added all of its lands to his own in the 300s B.C.E.They were conquered by the Arab Muslims who destroyed the Sassanid Persian Empire in the 600s C.E. and resulted in the territory becoming prominent in the Rashidun, Umayyad, and Abbassid Caliphates.The Persians were overrun in the 1200s C.E. by Hulegu Khan of the Mongol Empire who founded the Ilkhanate or Middle Eastern Khanate.