Back when the world population was approximately 5 million, it seems like a few of them were living in the area Apsalos of Pella in northern Greece. Archaeologists have recently discovered stone tools, and clay objects, which date back to 7937 B.C. attesting to an early settlement that has come to verify that people did actually inhabit this part of the world during the mesolithic period. This was a period when the people of Eurasia and Africa were just starting to adopt agriculture and domesticate some animals.
The stereotypical stone age imagery, of a caveman hunting, is not what typically pops in our minds when we think of Greece's history, but settlements existed here way before the glory of Ancient Greece, Socrates and Plato.
Man's time on earth is separated into different periods, the longest of which is the Stone Age (Paleolithic Period), which begins approximately 2.5 million years ago and ends around 3000 B.C. in Europe. This long period, which represents 99% of man's total time on earth so far, is also separated into three phases: Paleolithic, Mesolithic and Neolithic.
READ ABOUT THE PALEOLITHIC, MESOLITHIC AND NEOLITHIC PERIODS IN GREECE.
Image: http://reference.findtarget.com/search/Middle%20Paleolithic/
Sources: http://www.skai.gr/news/culture