It’s becoming recognized that the “undedifered Indus Valley Script” is Vedic Sanskrit in its most ancient form, the Kushites (progeny of Ham’s son Kush) of for instance Kushasthali (submerged since the end of the Ice Age) of the Indus Valley Civilization which adopted an “Indo European” (of the progeny of Noah’s son Japheth) tongue spoken over vast geographic range, within a few centuries after the Tower of Babel.