American Museum of Natural History Congo Expedition In May of 1909, scientists Herbert Lang and James Chapin set sail for the Belgian Congo. When they returned to the states 5 1/2 years later, they had collected an enormous number of zoological and anthropological specimens. For a brief overview of the expedition, watch the Flash introduction, then use the interactive itinerary to follow their voyage from New York to Western Africa, and up the Congo River to the Ituri Forest region. And don't miss the Galleries section, where you'll find the incredibly interesting Map Gallery that charts the development of European knowledge of African geography from 1562 through 1940. With more than 2,000 photographs and dozens of field notebooks, this site begs to be explored. (in Regional > United States)