Why did Alexander the Great spread Greek ideas?

Answer 1

He established over 70 Greek-style cities (half modestly named Alexandria after himself, one after his horse), hoping to spread Greek culture. He also married Persian women to his senior soldiers to breed a united people.

His early death limited this expansion of Hellenism. His successors limited it to the upper classes, and the majority of people in the empire went on as normal.

Answer 2

He attempted to initiate it by establishing over 70 Greek-style city-states (over 30 modestly named Alexandria after himself), encouraged Greek language, allowed Greek carpetbaggers to move in, and inducted the children of the Persian aristocracy into Greek life and his army. However his early death curtailed this and it was left to his generals to fight over his empire and establish Hellenistic kingdoms, but these were Greek for only the upper classes, and the mainstream continued their customary cultures.

Answer 3

By establishing about 70 Greek-modelled cities to introduce Greek culture. Half of them he modestly called Alexandria.

Answer 4

He saw it as a civilising influence which would unify his empire.