The historic figure known for his "I Have a Dream" speech is Dr. Martin Luther King Jr. He delivered this iconic address during the March on Washington for Jobs and Freedom on August 28, 1963. The speech articulated his vision of a racially integrated and harmonious America, where people would be judged by their character rather than the color of their skin. King's powerful oratory and commitment to nonviolent protest made him a central figure in the American civil rights movement. The speech has since become a symbol of the struggle for civil rights and social justice, inspiring generations in the ongoing fight for equality.