The Force Publique cut off rubber workers' hands in a "free state" of this name set up by Leopold II.
Antonianism was founded in a historical state of this name by a miracle-working woman named Kimpa Vita. Arthur Conan Doyle wrote about the "crime" of a European colony of this name, which was attacked in the media by George Washington Williams and ED Morel. A kingdom of this name converted to Christianity under Afonso I and supplied most of the slaves sold at Sao Tomé; that (*) Portuguese kingdom of this name was located in present-day Angola. The Force Publique cut off rubber workers' hands in a "free state" of this name set up by Leopold II. For 10 points, name this Belgian colony that shares its name with a large river of Central Africa.
Antonianism was founded in a historical state of this name by a miracle-working woman named Kimpa Vita.
Congo [or Kongo; or Kingdom of Kongo; or Congo Free State; or Belgian Congo]