a national holiday in the US on the third Monday in January to celebrate the birthday of Martin Luther King, Jr., who was active in the struggle to win more rights for African Americans (the abbreviation for Martin Luther King Day)
روز مارتین لوتر کینگ, روز یادبود مارتین لوتر کینگ, روز گرامیداشت مارتین لوتر کینگ