The famous speech delivered at the Lincoln Memorial in 1963 is known as the "I Have a Dream" speech, given by civil rights leader Martin Luther King Jr. During the March on Washington for Jobs and Freedom, King addressed a crowd of over 250,000 people, articulating his vision for a racially integrated and just society. He called for an end to racism in the United States and emphasized the importance of equality and civil rights for all Americans. This speech has since become one of the defining moments of the American civil rights movement and continues to inspire advocacy for justice and equality.