The so-called Black National Anthem was composed in 1900, and it’s provided a soundtrack to Black life ever since. For this special Black History Month episode, CNN’s Don Lemon speaks with Rep. James Clyburn, historian Prof. Imani Perry, and Howard University choir conductor Eric Poole about the song’s history, cultural significance, and impressive staying power over the past century. And how it’s now more relevant than ever.  To learn more about how CNN protects listener privacy, visit cnn.com/privacy