"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.
the geography of greece
led to limited interactions with other cultures in the mediterranean
was rich in natural resources and led to repeated invasions from the macedonians
encouraged greater contact with peoples on the southern and eastern mediterranean coasts
caused the greeks to eventually relocate eastward under alexander the great