How old were in this valley cities different from cities of other early civilizations

What valley are you talking about we need information

While others civilizations were devoting huge amounts of time and resources to the rich, ... The ruins of two ancient cities, Harappa and Mohenjo-Daro (both in ... Similar seals with different animal symbols and writings have since been found throughout the region ... This copy of the Rig Veda was written after the Vedic Age.