A major achievement of the OAU was the

A major achievement of the OAU (Organization of African Unity) was the decolonization of Africa. The OAU was founded in 1963 with the aim of promoting unity and cooperation among African countries and supporting the decolonization of Africa. At the time of its establishment, many African countries were still under colonial rule and the OAU played a significant role in helping them gain independence. The OAU supported liberation movements and provided assistance to newly independent countries in areas such as education, healthcare, and economic development. Through its efforts, the OAU was able to help the majority of African countries gain independence from their colonial powers, which was a significant achievement in the history of Africa. While the OAU was later replaced by the African Union (AU) in 2002, its legacy and achievements continue to shape the political, social, and economic landscape of Africa today.