Martin Luther King, Jr., is known for his contributions to the American civil rights movement in the 1960s. His most famous work is his “I Have a Dream” speech, delivered in 1963, in which he spoke of his dream of a United States that is void of segregation and racism. King also advocated for nonviolent methods of protest, and he organized and staged countless marches and boycotts. Martin Luther King, Jr., influenced people around the world. He advocated for peaceful approaches to some of society’s biggest problems.