British colonial policy in Sudan had a long history of emphasizing development of the Arab north, and largely ignoring the Black African south, which lacked schools, hospitals, roads, bridges, and other basic infrastructure. After Sudan's first independent elections in 1958, the continued neglect of the southern region by the Khartoum government led to uprisings, revolt, and the longest civil war on the continent. Peoples affected by the violence included the Acholi, Anyuak, Baka, Balanda Bviri, Bari, Boya, Didinga, Dinka, Jiye, Kaligi, Kuku, Lotuka, Mundari, Murie, Nilotic, Nuer, Shilluk, Toposa and Zande.