In a landmark decision 70 years ago, the U.S. Supreme Court mandated that the nation’s children have a Constitutional right to attend schools free from racial segregation. Despite progress, the path to fulfilling that promise is still ongoing seven decades after Brown v. Board of Education, advocates and officials say.

Through photos and graphics illustrating notable events since the 1954 decision, the firsthand account of a retired superintendent who grew up during segregation, and new data that suggests schools are becoming resegregated, we take a look back at Brown’s impact on schools — as well as the work that remains.