Answer:
It broke the separate but equal case Plessy V. Ferguson case by saying that separating children by race in schools was unconstitutional, Black children and white children can be together they don't have to be separated anymore just because they have a different skin color.
Step-by-step explanation:
Brown v. Board of Education of Topeka, 347 U.S. 483, was a landmark decision of the U.S. Supreme Court in which the Court ruled that U.S. state laws establishing racial segregation in public schools are unconstitutional, even if the segregated schools are otherwise equal in quality.