The late Secretary of State and former US Chairman of the Joint Chiefs of Staff, Colin L. Powell spoke of this legacy in the 2013 PBS special:

‘Lincoln@Gettysburg, marking the 150th Anniversary of Lincoln’s speech. Secretary Powell said that “the Civil War preserved the Union, the Civil War ended legal slavery. But for the next almost 100 years, we found that with segregation and Jim Crow, the reconstruction period failed. Slavery existed by yet another name. So, we needed another

Civil War, a Civil War of the mind, A Civil War of Courage, A Civil War of Character. That Civil War was not led by Lincoln, but by Dr. Martin Luther King, Jr.” This fourth movement is dedicated to the memory of Dr. King and his three historic marches across the Edmund Pettis Bridge in Selma, Alabama during March 1965.