Regarding the geography of Ancient Greece, we can say that it was (and obviously still is) in the Balkan Peninsula at its southern tip.
We can add that the formation of the people and the Greek culture took place by the union of peoples such as the Ionian, Achaean and Dorian, and soon Greek state cities were formed, being that they were independent of each other, normally organized in monarchies, with a king; with the exception of Athens, which has become a democracy.