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
1950s in Angola 1950s in Angola Angola in the 1950s transitioned from colonial to provincial status. Angola had the status of a Portuguese colony from 1655 until the Assembly of the Republic passed a law on June 11, 1951, giving all Portuguese colonies provincial status, effective on October 20, 1951. Separatist political organizations advocating Angolan independence formed in the 1950s despite strong resistance from the Portuguese government, leading to the Angolan War of Independence (1961–1975). Viriato da Cruz and others formed the Movement of Young Intellectuals, an organization that promoted Angolan culture, in 1948. Nationalists sent a letter to the United Nations calling