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David Livingstone - Wikipedia
David Livingstone - Expeditions, Facts & Children - Biography
David Livingstone | Biography, Expeditions, & Facts | Britannica
David Livingstone summary | Britannica
David Livingstone | Christian History | Christianity Today
David Livingstone | Encyclopedia.com
History - Historic Figures: David Livingstone (1813 - 1873) - BBC
David Livingstone - Zambezi Expedition, Missionary, Explorer
Dr. David Livingstone, a Bicentenary | Scientific American
David Livingstone - Missionary and Explorer - Classic History