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.
At Magdala on Good Friday in 1868, Robert Napier crushed the forces of this entity, whose ruler then committed suicide. Kassai replaced Abuna Salama, the head of the Orthodox Church in this country before becoming emperor, while the Battle of Wofla was fought near the end of its war with the Adal Sultanate. Mengistu became head of state after the Derg deposed the then-ruler; that ruler had led this nation in its second war with Italy, the first of which ended with a victory at Adowa. FTP, name this African nation whose leaders have included Menelik II and Haile Selassie and has its capital at Addis Ababa.
A:
History