Claim: Greece's dominant state during the Hellenistic period was Macedon.
Evidence: Philip of Macedon united most of the Greek mainland in the fourth century BC , with his son Alexander the Great rapidly conquering much of the ancient world , spreading Greek culture and science from the eastern Mediterranean to the Indus River.
Macedonia or Macedon -LRB- -LSB- ˈmæsɪˌdɒn -RSB- -RRB- was an ancient kingdom on the periphery of Archaic and Classical Greece , and later the dominant state of Hellenistic Greece.