Part 1: 1900-1919 / by S.B. Spies : British supremacy and South African unification -- The launching of the Union of South Africa -- South Africa and the First World War -- Part 2 : 1919-1934 /by J.P. Brits : The last years of South African Party rule -- The Pact and South African society -- Political developments and the depression of 1929-1934 -- Part 3: 1934-1966 / by A.M. Grundlingh : Afrikaner nationalism and white politics -- South Africa and the Second World War -- Segregation, black politics and trade unionism -- Part 4: 1948-1966 / byD. M. Scher : The consolidation of the apartheid state -- Triumph over imperialism -- The first five-year plan Part 5: 1966-1991 / by B.J. Liebenberg : The struggle against isolation -- Apartheid at the crossroads -- Towards the end of apartheid.