On August 28, 1963, the Rev. Martin Luther King, Jr. delivered the “I Have a Dream” speech that inspired America — and shamed it into honoring the principles on which it was founded. King was well into his prepared remarks, Jones said, when his favorite gospel singer, Mahalia Jackson, cried out, “Tell them about the dream, Martin! Tell them about the dream.” And then King went off his script — and the speech became known as “I Have a Dream.” Watch the full speech here: https://goo.gl/MGQaKo | SF

In 1963, Martin Luther King Jr. delivered his “I Have a Dream” speech at the March on Washington to nearly a quarter million people. But none of it would have been possible without this man: | TED-Ed