On August 28, 1963, King delivered the keynote address to an audience of more than 200,000 civil rights supporters. His "I Have a Dream" speech expressed the hopes of the Civil Rights Movement in oratory as moving as any in American history: "I have a dream that one day this nation will rise up and live out the true meaning of its creed: 'We hold these truths to be self-evident, that all men are created equal.' ... 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."
The speech and the march built on the Birmingham demonstrations to create the political momentum that resulted in the Civil Rights Act of 1964, which prohibited segregation in public accommodations, as well as discrimination in education and employment. As a result of King's effectiveness as a leader of the American Civil Rights Movement and his highly visible moral stance he was awarded the 1964 Nobel Prize for peace.