Dr.Martin Luther King,Jr.(January 15,1929 – April 4,1968) was an American political activist,the most famous leader of the American civil rights movement,and a Baptist minister.Considered a peacemaker throughout the world for his promotion of nonviolence and equal treatment for different races,he received the Nobel Peace Prize before he was assassinated in 1968.He was posthumously awarded the Presidential Medal of Freedom by Jimmy Carter in 1977,the Congressional Gold Medal in 2004,and in 1986,Martin Luther King Day was established in his honor.King's most influential and well-known speech is the "I Have A Dream" speech.