In this photograph, The Rev. Ralph Abernathy, Ralph Bunche, Martin Luther King Jr., Mrs. King and Rosa Parks on the first of a five--day march from Selma to Montgomery, Alabama, March 21, 1965. Photo credit: Bruce Davidson / Courtesy Howard Greenberg Gallery, New York
On March 7, 1965, a group of 600 civil rights marchers is forcefully broken up in Selma, Alabama in what became known as "Bloody Sunday". Televised images of the brutal attack roused support for the U.S. civil rights movement.