Martin Luther King Jr. is most notably associated with the March on Washington for Jobs and Freedom, which took place on August 28, 1963. During this historic event, King delivered his iconic "I Have a Dream" speech to over 250,000 participants, advocating for civil and economic rights for African Americans. The march was a culmination of the civil rights movement, emphasizing the importance of racial equality and justice. King's passionate rhetoric and vision for a racially integrated and harmonious America resonated widely, making it a defining moment in the struggle for civil rights. This event helped galvanize public support and influenced subsequent legislation aimed at ending racial discrimination.