African-American Heritage Dr. Martin Luther King Jr. 2020 Calendar. To comply with guidelines established by the Martin Luther King Jr. Estate, advertisers promoting firearms, liquor or tobacco, or ads with copy that is deemed offensive or inappropriate cannot use. Celebrate the accomplishments of outstanding African-Americans with this detailed, educational calendar featuring Martin Luther King, Jr. Top markets: retail, religious, insurance. Material: 60# gloss text/UV-coated cover. Product Size Closed: 10"w x 10"h. Product Size Open: 10"w x 19"h.