Answer:
Segregation in schools during the 1900s was a widespread practice in the United States. It was based on the belief that students of different races should be educated separately, with white students receiving superior education compared to black students. This practice was legally upheld by the Supreme Court in the 1896 case of Plessy v. Ferguson, which established the "separate but equal" doctrine. However, the reality was that black students were often provided with inferior facilities and resources, leading to a significant achievement gap between white and black students. Segregation in schools was not fully abolished until the 1954 Supreme Court case of Brown v. Board of Education, which ruled that segregation in schools was unconstitutional.