Photograph by Doug Mills—The New York Times/ReduxFifty years after  Bloody Sunday —the landmark civil rights protest that saw demonstrators attacked by state police as they walked across Edmund Pettus Bridge in Selma, Ala.—thousands gathered to retrace the march. Among them were President Obama and his family as well as original marchers Congressman John Lewis and Amelia Boynton Robinson.  The march is not yet over,  Obama said during the March 7 event.  The race is not yet won.  (TIME issue March 23, 2015)