King, Martin Luther, Jr., 1929-1968. I have a dream

"I Have a Dream" is a public speech that was delivered by American civil rights activist and Baptist minister Martin Luther King Jr. during the March on Washington for Jobs and Freedom on August 28, 1963. In the speech, King called for civil and economic rights and an end to racism in the United States. Delivered to over 250,000 civil rights supporters from the steps of the Lincoln Memorial in Washington, D.C., the speech was one of the most famous moments of the civil rights movement and among the most iconic speeches in American history. Beginning with a reference to the Emancipation Proclamation, which declared millions of slaves free in 1863, King said: "one hundred years later, the Negro still is not free". Toward the end of the speech, King departed from his prepared text for an improvised peroration on the theme "I have a dream". In the church spirit, Mahalia Jackson lent her support from her seat behind him, shouting, "Tell 'em about the dream, Martin!" just before he began his most famous segment of the speech. Taylor Branch writes that King later said he grasped at the "first run of oratory" that came to him, not knowing if Jackson's words ever reached him. Jon Meacham writes that, "With a single phrase, King joined Jefferson and Lincoln in the ranks of men who've shaped modern America". The speech was ranked the top American speech of the 20th century in a 1999 poll of scholars of public address. The speech has also been described as having "a strong claim to be the greatest in the English language of all time".