And the National Memorial for Peace and Justice opens today in Montgomery, Alabama—a monument to victims of white supremacy in the United States. The museum’s centerpiece is a walkway with 800 weathered steel pillars overhead, each of them naming a U.S. county and the people who were lynched there by white mobs. The museum’s creation was overseen by Bryan Stevenson of the Equal Justice Initiative, who says more than 4,400 black people died by lynching throughout U.S. history. Stevenson spoke to Democracy Now! in 2014.

Bryan Stevenson: “Lynching was horrific and terrifying. And we don’t talk about it. We put markers about the Confederacy in front of these courthouses, but we don’t say a word about the thousands of people that were lynched, hundreds of whom were lynched on courthouse lawns.”