[size=18]Alexander, born in Pella, the ancient capital of Macedonia, was the son of Philip II, king of Macedonia, and of Olympias, a princess of Epirus. Aristotle was Alexander's tutor; he gave Alexander a thorough training in rhetoric and literature and stimulated his interest in science, medicine, and philosophy. In the summer of 336 bc Philip was assassinated, and Alexander ascended to the Macedonian throne. He found himself surrounded by enemies at home and threatened by rebellion abroad. Alexander disposed quickly of all conspirators and domestic enemies by ordering their execution. Then he descended on Thessaly (Thessalia), where partisans of independence had gained ascendancy, and restored Macedonian rule. Before the end of the summer of 336 bc he had reestablished his position in Greece and was elected by a congress of states at Corinth.
In 335 bc as general of the Greeks in a campaign against the Persians, originally planned by his father, he carried out a successful campaign against the defecting Thracians, penetrating to the Danube River. On his return he crushed in a single week the threatening Illyrians and then hastened to Thebes, which had revolted. He took the city by storm and razed it, sparing only the temples of the gods and the house of the Greek lyric poet Pindar, and selling the surviving inhabitants, about 8,000 in number, into slavery. Alexander's promptness in crushing the revolt of Thebes brought the other Greek states into instant and abject submission.[/size]