Final answer:
The Plessy v. Ferguson case upheld racial segregation and established the "separate but equal" doctrine, permitting racially segregated public facilities of equal quality. This decision had significant effects on racial discrimination in the United States.
Step-by-step explanation:
Plessy v. Ferguson was a landmark Supreme Court case in 1896 that upheld the constitutionality of racial segregation. The court established the "separate but equal" doctrine, which allowed for racially segregated public facilities as long as they were of equal quality. This ruling led to a legal basis for segregation and the perpetuation of racial discrimination for several decades in the United States.
Learn more about The impact and implications of the Plessy v. Ferguson case