German explorer who was simply among the first visitors to map away Africa. He was section of an expedition over the Sahara desert into present day Western world Africa. Despite horrible conditions and the increased loss of many members from the expedition, he journeyed thousands of mls and collected enough observations to get a four-volume reserve. He was raised in Berlin, where he researched various dialects. Jan Truck Reibeeck was another well-known Western european who explored Africa.