Idaho Human Rights Day is a state holiday recognized only in the U.S. state of Idaho. Governor Cecil Andrus signed compromise legislation on April 10, 1990, making Idaho the nation's 47th state to honor slain civil rights leader Martin Luther King Jr. with an official state holiday. The holiday, defined by the legislation as Martin Luther King, Jr. - Idaho Human Rights Day, is celebrated on the third Monday in January, the same day as the federal Martin Luther King, Jr. Day holiday, which was first celebrated in 1986.