Achievement in the Mesolithic era.

During the Mesolithic era (12-7 thousand years BC), many changes took place. During this period, people first invented the bow and arrow, which allowed them to change the style of hunting. In addition, at this time, people began to make many tools of labor from stone for all sorts of purposes, they were called microliths. Also during this period people became more social, tribes began to arise and the first ancient settlements arose.