The Gambia, like the whole of Africa, has a human history that goes back many thousands of years. Until very recently, though, this history was documented by story and song passed from generation to generation. Take a look at the museum in Gambia if you want to learn more - it is very interesting and cheap to enter. You could go by taxi to the capital for a few pounds and take in the market, the independance arch and other attractions while you are there.