Republican presidential candidate Donald Trump signs autographs for supporters at the conclusion of a rally at Millington Regional Jetport on Saturday in Millington, Tenn. Michael B. Thomas/AFP/Getty Images hide caption

toggle caption Michael B. Thomas/AFP/Getty Images

In this Sunday, Jan. 18, 2015, photo, marchers hold up cellular phones to record the rapper Common and singer-songwriter John Legend performing at the foot of the Edmund Pettus Bridge. Brynn Anderson/AP hide caption

toggle caption Brynn Anderson/AP
The Racist History Behind The Iconic Selma Bridge
  • Download
  • <iframe src="https://www.npr.org/player/embed/391041989/391041990" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Actors dressed in full Ku Klux Klan regalia for scenes in 1915's The Birth of a Nation. Hulton Archive/ Getty Images hide caption

toggle caption Hulton Archive/ Getty Images
100 Years Later, What's The Legacy Of 'Birth Of A Nation'?
  • Download
  • <iframe src="https://www.npr.org/player/embed/383279630/384782617" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript