For 10 points, who asked, "Dr. Livingstone, I presume?"
George Washington Williams alleged that this man used an electric battery to shock natives off their feet to show his supposed strength. He was joined on one expedition by second-in-command Frank Pocock and traveled on the Lady Alice. He personally led a botched expedition in 1886 to rescue a governor of Equatoria threatened by Mahdist troops named (*) Emin Pasha, while his other journeys were chronicled in Through the Dark Continent. His exploration of the Lualaba River and his namesake waterfalls helped King Leopold II secure the Congo as a colony. He uttered his most famous line to a Scottish missionary in the village of Ujiji near Lake Tanganyika. For 10 points, who asked, "Dr. Livingstone, I presume?"
George Washington Williams alleged that this man used an electric battery to shock natives off their feet to show his supposed strength.
Sir Henry Morton {Stanley}