European exploration of Africa 1840s, so that around the midpoint of the 19th century and the beginning of the colonial Scramble for Africa, the unexplored parts were now limited to what would turn out to be the Congo Basin and the African Great Lakes. This "Heart of Africa" remained one of the last remaining "blank spots" on world maps of the later 19th century (alongside the Arctic, Antarctic and the interior of the Amazon basin). It was left for 19th-century European explorers, including those searching for the famed sources of the Nile, notably John Hanning Speke, Sir Richard Burton, David Livingstone and Henry Morton
European exploration of Africa Africa in Europe. In the mid-19th century, Protestant missions were carrying on active missionary work on the Guinea coast, in South Africa and in the Zanzibar dominions. Missionaries visited little-known regions and peoples, and in many instances became explorers and pioneers of trade and empire. David Livingstone, a Scottish missionary, had been engaged since 1840 in work north of the Orange River. In 1849, Livingstone crossed the Kalahari Desert from south to north and reached Lake Ngami. Between 1851 and 1856, he traversed the continent from west to east, discovering the great waterways of the upper Zambezi River. In November