Answer:
Plessy v. Ferguson
Step-by-step explanation:
A seminal U.S. case was Plessy v. Ferguson, 163 U.S. 537.
Supreme Court which maintained the lawfulness of public facilities ' racial segregation laws as long as the segregated facilities were of equivalent quality – a practice that became known as "separate but equal."
The ruling justified the many state laws that had been enacted in the American Era to enforce racial segregation.