The 65th anniversary of Brown v. Board of Education approaches on May 17, but fights over school segregation, rather than decreasing, are becoming more common. Cities like New York and San Francisco are debating how to assign students to schools in ways that foster classroom diversity, and school secession movements — in which parents seek to form their own, majority-white districts — are accelerating.

A new report from U.C.L.A. and Penn State outlines the changes in school segregation since the landmark Supreme Court ruling named after Oliver Brown, a black father who sued to enroll his daughter, Linda, in an all-white elementary school blocks from their home in Topeka, Kan….

The New York Times