What leader was able to control all of the Greek city states?

Philip II

Greece was divided and weak because of the Peloponnesian War. Greece was divided and weak because of the Peloponnesian War. The condition of Greece that made it easy for Philip II to conquer almost all the Greek city-states.

a. the astrolabe could determine the correct latitudinal location of the ship

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.