It was one of the most significant days in the history of the U.S. Supreme Court. On May 17, 1954, the nine justices unanimously ruled in Brown v. Board of Education that schools segregated by race did not provide an equal education. Students could no longer be barred from a school because of the color of their skin. To commemorate the 70th anniversary of the Brown decision, I wanted to look at how far we’ve come in integrating our schools and how far we still have to go.

Two sociologists, Sean Reardon at Stanford University and Ann Owens at the University of Southern California, have teamed up to analyze both historical and recent trends. Reardon and Owens were slated to present their analysis at a Stanford University conference on May 6, and they shared their presentation with me in advance. They also expect to launch a new website to display segregation trends for individual school districts around the country.

Here are five takeaways from their work:

Read the full article about the state of school segregation 70 years after the Brown v Board of Education decision by Jill Barshay at The Hechinger Report .