A Depression-era mural depicting white children playing outside in the winter was removed from Percy Julian Middle School in Oak Park because school officials said it failed to represent the school’s diversity. While some said the mural was upsetting to students of color who felt it excluded them from the school, a local historian likened the removal to a “modern-day book burning.” Cynthia Brito Millan, a coordinator for the middle school’s Social Justice Club, said the push to remove the mural began in February at a district school board meeting. Students expressed frustration about an atmosphere of exclusion for students...