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.

A recent book discussing this nations Presidential election is You Must Set Forth at Dawn, which discusses the fraud at the heart of the administration of Umar Musa YarAdua. Recent troubles in this country have centered on a group partially led by Ateke Tom, which has been undertaking raids in its Rivers State near Port Harcourt, near a region from which Royal Dutch Shell employees have been kidnapped, the delta of its namesake river. For 10 points, name this oil-rich nation long ruled by Olusegun Obasanjo; a large nation of west central Africa.
History