Martin Luther King Jr. was assassinated.
He was shot at the Lorraine Motel in Memphis, Tennessee, by James Earl Ray.
Source
Martin Luther King Jr. Day was officially made a federal US holiday.
Martin Luther King Jr. delivered his historic 'I Have a Dream' speech at the Lincoln Memorial.
Martin Luther King Jr. was arrested for a demonstration he was involved in during December 1961.
US President Jimmy Carter expressed his support for Martin Luther King's birthday to become a national holiday.
Martin Luther King Jr. writes 'Letter from a Birmingham Jail'.
