Cape Verde with the colonial masters, who nevertheless refused to provide the local authorities with more autonomy. In 1951, Portugal changed Cape Verde's status from a colony to an overseas province in an attempt to blunt growing nationalism. In 1956, Amílcar Cabral and a group of fellow Cape Verdeans and Guineans organised (in Portuguese Guinea) the clandestine African Party for the Independence of Guinea and Cape Verde (PAIGC). It demanded improvement in economic, social and political conditions in Cape Verde and Portuguese Guinea and formed the basis of the two nations' independence movement. Moving its headquarters to Conakry, Guinea in 1960, the
Santiago, Cape Verde 19th century resulted in an economic crisis, and the growing port of Mindelo on São Vicente replaced Praia as the most important port. With few natural resources and inadequate sustainable investment from the Portuguese, the citizens grew increasingly discontented with the colonial masters, who nevertheless refused to provide the local authorities with more autonomy. The island population were disadvantaged by the Portuguese colonial system and supported Amílcar Cabral and the African Party for the Independence of Guinea and Cape Verde and the independence of 1975. Santiago is the largest island of Cape Verde, with an area of . It is