affranchi african american asian people baster black people bureau of colored troops census coloured commonwealth of nations creole peoples ethnic group euphemism free people of color gens de couleur goffal john tyler louisiana melanin mulatto namibia native americans in the united states negro new orleans north america objectification person of color president privilege race relations racial segregation racism rhodesia shona people south africa south africa under apartheid south west africa swaziland visible minority white people zimbabwe