Martin Luther King Jr. was a prominent civil rights activist and leader in the movement to end racial segregation in the United States through nonviolent protest. He delivered his famous "I Have a Dream" speech and became the youngest person awarded the Nobel Peace Prize. After King's assassination in 1968, a campaign began to honor him with a federal holiday, and in 1983 Congress passed a bill establishing Martin Luther King Jr. Day to be observed annually on the third Monday of January.