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Pinback button promoting Martin Luther King Day, 1982. Creator: UnknownMartin Luther King Jr. Day, (sometimes referred to as MLK Day), is a national holiday in the United States marking the birthday of African-American civil rights campaigner Martin Luther King Jr
Pinback button for a national holiday for Martin Luther King, Jr. mid-20th centuryMartin Luther King Jr. Day, (sometimes referred to as MLK Day), is a national holiday in the United States honoring African-American civil rights campaigner Martin Luther King Jr
