1 янв 6750 г. до нашей эры - Mesolithic Period, also called Middle Stone Age, ancient cultural stage that existed between the Paleolithic Period (Old Stone Age), with its
chipped stone tools, and the Neolithic Period (New Stone Age), with its polished stone tools. Most often used to describe archaeological
assemblages from the Eastern Hemisphere, the Mesolithic Period is broadly analogous to the Archaic culture of the Western Hemisphere.
