King Philip II of Macedon took advantage of the feuding between Greek city states to take control of all of Greece. Upon his assasination, his son, Alexander the Great inherited Philip II's realm. During Alexander's life he expanded the empire to stretch through Egypt and parts of India. Alexander the Great's empire was crippled after his death. From his empire, three main Hellenistic civilizations emerged: Ptolemaic Egypt, Macedon, and Seleucid Syria. The seperate kindoms flourished in education, but internal rivalries led to the fall of each to Roman conquerers.