The Supreme Court decision in Brown v. Board of Education of Topeka, handed down on May 17, 1954, made racial segregation in public schools illegal. The ruling struck down the "separate but equal" doctrine established in the Plessy v. Ferguson case of 1896. To find this answer, you can research the Brown v. Board of Education case, its background, the parties involved, and the specific Supreme Court decision. This information can be found in various sources such as textbooks, scholarly articles, legal websites, and reputable online resources.
