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A recently-found photograph of escaped slave, abolitionist and Union spy Harriet Tubman that was acquired by the Smithsonian is displayed before a hearing of the House Administration Committee in the Longworth House Office Building on Capitol Hill June 17, 2015 in Washington, DC. Auburn, New York, photographer H. Seymour Squyer made the photograph around 1885. Born into slavery, Tubman used a network of antislavery activists and safe houses known at the Underground Railroad to help lead about 13 missions to rescue about 70 enslaved family and friends. Chip Somodevilla, Getty Images.