August 28, 1963

I Have a Dream

Martin Luther King Jr. delivers "I Have a Dream" at the March on Washington

The words that named the speech appear nowhere in King's typed delivery manuscript. The official program advertised the address with one word: "Remarks."

The Lincoln Memorial, 28 August 1963

Approximately 250,000 demonstrators assembled in Washington on 28 August 1963 for the March on Washington for Jobs and Freedom, moving from the Washington Monument to the Lincoln Memorial.

King delivered the program's concluding major address. The printed program called it simply "Remarks" and placed it as item 16 of eighteen, after Rabbi Joachim Prinz and before the pledge and the benediction.

He recalled finishing the prepared text at roughly 3:30 that morning.

Manuscript first, then memory

King began from the manuscript, invoking the Emancipation Proclamation and portraying constitutional equality as a promissory note on which the country had defaulted — a metaphor suggested by his adviser Clarence B. Jones.

Partway through he set the typescript aside and drew on material he had used in earlier sermons and speeches: the "dream" sequence, then the "let freedom ring" conclusion. The delivered address ran about sixteen minutes.

What the record actually supports

Mahalia Jackson, who had performed shortly before him, called out to King about the dream. Eyewitnesses remembered her prompting him, but analysis of the master recording suggests she may have spoken after he had already begun that passage.

Contemporary Associated Press coverage reported that King departed from his advance text and received the strongest applause of the Lincoln Memorial speeches. Afterwards, King and other movement leaders met President Kennedy and Vice President Johnson at the White House to press for civil-rights legislation.

Sources

Researched 23 Aug 2026 7 sources 2 audit passes

How this was checked

Researched from the web into a fact sheet, rewritten from that sheet, then audited against it by a different model. How the pipeline works →

What the sources leave uncertain

Attendance was estimated, not counted precisely. Stanford’s King Institute says more than 200,000; the National Archives and Smithsonian commonly use approximately or more than 250,000. “At least 250,000” is therefore too exact as a lower bound.
Mahalia Jackson’s call about the dream is well supported by eyewitnesses, but the master recording suggests she may have called after King had already begun the dream passage. Her role as the decisive trigger should be presented as a recollection, not certainty.
“Largest protest in American history” depends on definitions. The National Archives calls it the largest peaceful demonstration and largest human-rights demonstration in U.S. history up to that time.