Correct Answer: 1970s

Solution : The correct answer is 1970s .

The initial stages of widespread decolonisation in Africa started during this decade. Libya achieved independence as the first African nation during this decade in 1951, and the Algerian War started in 1954. Ghana became the first country in sub-Saharan Africa to achieve independence in 1957, following the independence of Tunisia, Morocco, and Sudan in 1956.