Val James of the Toronto Maple Leafs takes warmup prior to a preseason game against the Boston Bruins at Maple Leaf Gardens in Toronto, Ontario, Canada, in 1986. Graig Abel Collection/Getty Images hide caption

itoggle caption Graig Abel Collection/Getty Images

Wendell Scott, pictured here in 1969, is the first — and only — black man to win a race in NASCAR's top series. AP hide caption

itoggle caption AP

Great Dismal Swamp, in Virginia and North Carolina, was once thought to be haunted. For generations of escaped slaves, says archaeologist Dan Sayers, the swamp was a haven. U.S. Fish and Wildlife Service hide caption

itoggle caption U.S. Fish and Wildlife Service

Robert Lee Watt was a member of the Los Angeles Philharmonic for more than three decades. Courtesy of Rowman & Littlefield Publishers hide caption

itoggle caption Courtesy of Rowman & Littlefield Publishers

Neonta Williams (left) shares family letters dating back to 1901 with preservationist Kimberly Peach during the Smithsonian's Save our African American Treasures program at the Birmingham Civil Rights Institute. Peach advises her to use archive-quality polyester sleeves to protect the fragile papers, rather than store them in a zip-lock bag. Debbie Elliott/NPR hide caption

itoggle caption Debbie Elliott/NPR

Starting a bone marrow registry in Nigeria "became an obsession" for Seun Adebiyi. "I thought that even if I couldn't find a match, I wanted to make it easier for other black patients to find a match." Seun Adebiyi hide caption

itoggle caption Seun Adebiyi