You begin this trip at the source of Euphrates in the country of

whose power in the senate is equal to the power of the speaker of the house?

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

passing amendments to the constitution.