Martin Luther King Jr.'s work was pivotal in the civil rights movement, profoundly influencing advocacy for racial equality in the United States. His doctrine of nonviolence galvanized mass protests and brought attention to systemic injustices faced by African Americans. Through powerful speeches, like the legendary "I Have a Dream," King articulated the dreams and aspirations of many, inspiring activism worldwide. His leadership not only helped to dismantle legal segregation but also fostered a spirit of community and hope, influencing subsequent generations of activists in their pursuit of social justice.