This Photo of Harriet Tubman Was Lost for Close to a Century

More than a century after Harriet Tubman died in March of 1913, the Library of Congress announced on Tuesday that it has conserved and digitized a previously unrecorded portrait of the "conductor" of the Underground Railroad, the secret network that helped fugitive slaves in the South get to freedom in the North.

Catalogers believe that the photograph was taken between 1867 and 1869, when she lived in Auburn, N.Y.