Martin Luther King Jr. Day is a federal holiday in the United States, which is observed on the third Monday of January.

The Martin Luther King Jr. holiday was first celebrated in 1986 and has been observed every year since then. This holiday is celebrated to commemorate the life and work of Martin Luther King Jr., an American civil rights activist who played a significant role in ending racial segregation in the United States.

Martin Luther King Jr. Day was created as a federal holiday to honor Dr. Martin Luther King Jr., who was assassinated on April 4, 1968, while standing on the balcony of his motel room in Memphis, Tennessee.