A journey taken by this man disproved that the source of the Nile was the Lualaba River. For 10 points each:
[10e] Name this Welsh explorer who, while traversing the shores of Lake Tanganyika, found Dr. David Livingstone. He later claimed much of the Congo for a Belgian king.
ANSWER: Henry Morton Stanley
[10m] Stanley's exploration of the Congo was analyzed in this popular history book by Adam Hochschild partly named for the leader of the Belgian Congo, which draws on the writings of Jules Marchal to analyze large-scale atrocities in the Congo Free State.
ANSWER: King Leopold's Ghost
[10h] The first commander of the Force Publique, who oversaw the collection of rubber quotas, had this first name and surname Roget. A colonial officer with this first name and surname Rom supposedly used 21 severed heads to decorate his Stanley Falls home.
ANSWER: Leon [or Leon Roget; or Leon Rom]
<Noah Sheidlower , History - European - Mixed/Any>