Martin Luther King Jr. was a prominent civil rights leader in the United States in the 1950s and 1960s. He advocated for non-violent protest and civil disobedience to end racial segregation and discrimination. Some of the key events in his life included leading the Montgomery Bus Boycott in 1955-1956, helping to organize the March on Washington in 1963 where he delivered his famous "I Have a Dream" speech, and receiving the Nobel Peace Prize in 1964 for his nonviolent resistance to racial prejudice. However, his advocacy was met with resistance and he was assassinated in Memphis, Tennessee in 1968 at the age of 39 while supporting a sanitation workers' strike.