You can read The Tragedy of Russia by Will Durant, about his visit to Russia under Socialism. The Case For India by Durant is an argument to end British rule of India and has a long chapter on Gandhi. Interpretations of Life is about 20th century authors. By following the footnotes in these books you can go on from Napoleon. There is also a Dual Autobiography by Will and Ariel Durant which has some interesting anectdotes about Charlie Chaplin.
Durant was friends with Charles E. Beard who wrote many books on U.S. history.
