Support WBURWhy It's Difficult To Find Full Video Of King's Historic SpeechPlay04:28Download AudioEyder PeraltaAugust 23, 2013 ShareCivil rights leader Martin Luther King waves to supporters from the steps of the Lincoln Memorial on Aug. 28, 1963, in Washington. (AFP/Getty Images)
Civil rights leader Martin Luther King waves to supporters from the steps of the Lincoln Memorial on Aug. 28, 1963, in Washington. (AFP/Getty Images)