Chama Cha Mapinduzi

The Chama Cha Mapinduzi is the dominant ruling party in Tanzania. It was formed in 1977 from a merger between the Tanganyika African National Union (TANU) and the Afro-Shirazi Party (ASP), which were the sole operating parties in mainland Tanzania and the semi-autonomous islands of Zanzibar, respectively. It has formed the majority government in Tanzania ever since, making it the second-longest ruling party in the history of Africa, only after the True Whig Party of Liberia.