Which is considered as oldest civilization of the world? November 24, 2021November 24, 2021 administrator A. egyptian civilizationB. harappa civilizationC. chinese civilizationD. mesopotamian civilizationCheck AnswerD. mesopotamian civilization Share the PostRelated Posts:Which is the continuous world's oldest democracy?Which is the world's oldest democracy?Where is the world's oldest university?The Indus Valley Civilization was based on the…The "cradles of civilization" have beenArchaeologists have identified some 400 Indus…