The stone age is a most famous pre-historic building in ____________ .

The skill of writing developed in the _________ .

The Civilization flourished in the valley of the rivers Euphrates and Tigris is called  ______________ Civilization.

By the end of the chattolothic period ,man started living ________ and _____ like  .

Many palaelithic tools have been found from ________ .

Microliths have been found at __________  in Rajasthan .

CHALCOLITHIC remains have been discovered in the __________and _________ .

________ made easier to hunt fast moving animals .

The middle stone age lasted for a period from _________ to _____________ .

___________________ was the heart of Mesopotamia.