Alexander Keyssar is an American historian, and the Matthew W. Stirling Jr. Professor of History and Social Policy at Harvard University. Wikipedia*
On the C-SPAN Networks:
Alexander Keyssar has five videos in the C-SPAN Video Library; the first appearance was a 2000 Speech as a Professor for the History Department of the Duke University. The year with the highest average number of views per program was 2016 with an average of 852 views per program.