Portuguese Angola Portuguese protectorate by the 1885 Treaty of Simulambuco. Sometime during the 1920s, it became incorporated into the larger colony (later the overseas province) of Portuguese Angola. The two colonies had initially been contiguous, but later became geographically separated by a narrow corridor of land, which Portugal ceded to Belgium allowing Belgian Congo access to the Atlantic Ocean. Following the decolonisation of Portuguese Angola with the 1975 Alvor Agreement, the short-lived Republic of Cabinda unilaterally declared its independence. However, Cabinda was soon overpowered and re-annexed by the newly proclaimed People's Republic of Angola and never achieved international recognition. Portuguese explorers and
1960s in Angola 1960s in Angola The 1960s in Angola were marked by the War of Independence (1961–1975). Portuguese police arrested Agostinho Neto of the MPLA and future President of Angola (1975–1979) in 1960 for the third time. Delegates discussed Cabinda's self-determination in relation to Angola at the 4th Commission of the United Nations on Decolonization in New York in 1962. Cabinda became a member of the Organisation of African Unity (OAU) as the 39th colonized country in 1964. Angola's industries grew by an annual average rate of 17% in the 1960s as ethnic Europeans seized natives' lands and increased mineral production. Mineral