George Washington Williams was one of the first people to publicly describe the atrocities being carried out in the Congo Free State under King Leopold II of Belgium. But so much happened in his life before that.
Research:

Behind the Scenes Minis: Carry-on Bags
28:38

Gustave Flaubert and the ‘Madame Bovary’ Trial
45:15

Elizabeth Bisland, Beyond the Trip Around the World
42:54