‘I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character.’ (Martin Luther King, 28 August 1963) [Video of full speech here. Text here.]
Martin Luther King delivered his famous ‘I have a dream speech’ in a particular context. Some southern states of the USA still practiced segregation, ie, separate facilities for white and black people, those for the latter always inferior. This had its origins in the history of slavery in the Americas, the original slaves having been brought from West Africa.