The National Museum of African American History & Culture 2020 Engagement Calendar includes images from the museum's entire collection, including Harriet Tubman's shawl, Tommie Smith's 1968 Olympic warm up suit, Iconic Oprah Winfrey dresses, 2008 Obama campaign pins, a Jim Crow railroad car and much more. The National Museum of African-American History and Culture (NMAAHC) is part of the Smithsonian Institution, opened in 2016 to great...