The evidence and theories surrounding three chert end-scrapers which were discovered on the surface of Mohenjo-Daro. Wear patterns as well traces of an organic substance found in the grooves offer insight into the original uses of the artifacts. >

Very little is known about the subcontinent's history hundreds of thousands of years ago, say 300,000-30,000 years ago, which would have been the Middle Paleolithic period for example, except for small clues left at places like the Rohri chert (flint) mines and along the Indus in Sindh and else whe… >