AnthonyW86 on 28 July 2016
This video is pretty stupid, greatness is alway's relative to the rest of the world at the time. U.S. dominance started at the en of the 19th century. The 50's and 60's was probably the peak when it was the furthest ahead and the most powerfull and wealthy nation in the world. Overall i would this dominance lasted till the 90's.
