Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Towns on the banks of this body of water include Nguigmi and Bol, from which an archipelago extends. This body contains the territorially disputed Darak Island and the Kofia Islands. Fed principally by the Logone River and most importantly the Shari River, the expedition of Hugh Clapperton became the first European one to see this body of water. It dispatched Dixon Denham to study the area surrounding it, especially those areas which had seen the rise of the Kanem-Bornu Empire, for which it served as a geographic center. FTP, name this lake which has shrunk to less than one-tenth its size in the 1960s and situated squarely at the junction of Cameroon, Niger, Nigeria, and its namesake African country.
A:
Social Science