How did apartheid create and enforce divisions based on ideas of “we and they”?

Source 1 The Population Registration Act(No. 30)  provided  the basis for separating the population of South Africa into different races. click here to download source. Source 2 All South Africans were issued an Identity number which indicated the population to which they had been allocated. click here to download source. Source 3 Many stories from District Six are about ‘Coloured’...