History of The Gambia. Here is a neat piece of American Presidential history. FDR was the first President to visit Africa while he was in office.
From the site:
During World War II, Gambian troops fought with the Allies in Burma. Banjul served as an air stop for the U.S. Army Air Corps and a port of call for Allied naval convoys. U.S. President Franklin D. Roosevelt stopped overnight in Banjul en route to and from the Casablanca Conference in 1943, marking the first visit to the African Continent by an American president while in office.