What stands Plessy v. Ferguson for?

Plessy v. Ferguson (1896) was a landmark constitutional law case of the US Supreme Court, this case made it legal for states to keep their population racial segregate under the doctrine "seperate but equal"

separet but equal remained standard doctrine in U.S law until its reputation in the 1954 supreme court decision Brown v. Board of Education.

the decision was voted through with a 7 to 1 vote.