Plessy v. Ferguson (1896) is a landmark United States Supreme Court decision upholding the constitutionality of state laws requiring racial segregation in private businesses under the doctrine of “separate but equal,” which remained standard doctrine in U.S. law until its repudiation in the 1954 Supreme Court decision Brown v. Board of Education. The one dissenting vote was cast by Justice John Marshall Harlan who wrote, “The thin disguise of ‘equal’ accommodations…will not mislead anyone, nor atone for the wrong this day done.”