Answer:
Plessy v. Ferguson strengthened racial segregation in public accommodations and services throughout the United States and ensured its continuation for more than half a century by giving it constitutional sanction. it also advanced the controversial “separate but equal” doctrine for assessing the constitutionality of racial segregation laws.
It advanced the doctrine of "Separate but equal" which supported segregation, Its viewed as one of the worst supreme court rulings in the history of America
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