CSPAN3 American History TV November 20, 2016
250 years people have come to the forks of the ohio, the place for the Allegheny River comes together to form the ohio river. It is a place where ideas have converged. Now follow me and lets take a look at 250 years of pittsburgh innovation. 20,000 years ago, people started coming to north america. No one is native to north america. They all came from someplace else. About 30 miles west of pittsburgh is a place called the meadow cropped rock shelter. It is deal decided human habitation in north america. Representative of those first people in western pennsylvania. Arrivedfirst europeans they f...