Students chat while waiting for history class to start at Oak Ridge High School in September of 1955, when the once all-white high school was desegregated by order of the Atomic Energy Commission. The Tennessee city’s school board is now formally including the story of its integration in its curriculum.

Students chat while waiting for a history lesson to begin at Oak Ridge HIgh School, Oak Ridge, Tennessee, September 20, 1955. Previously an all-white institution, the school has been desegregated by order of the Atomic Energy Commission, which administers the affairs of the community. (Photo by Underwood Archives/Getty Images)