Zheng He's voyages were done to establish a Chinese presence.
O military
political
O religious
trading

answer; i believe that the correct answer is (chronological order);

apartheid, (afrikaans: “apartness”) policy that governed relations between south africa's white minority and nonwhite majority and sanctioned racial segregation and political and economic discrimination against nonwhites. people should not get this wrong. i was just answering a question.