Louisiana won Plessy v. Ferguson. On May 18, 1896, the U.S. Supreme Court ruled 7–1 against Homer Plessy, upheld Louisiana’s Separate Car Act, and affirmed Judge John H. Ferguson’s lower-court judgment. The decision created the “separate but equal” doctrine, which legalized racial segregation across the United States for the next fifty-eight years.1National Archives. Plessy v. Ferguson (1896)
The 7–1 Vote and What the Majority Held
Justice Henry Billings Brown wrote the majority opinion, cited as 163 U.S. 537. Seven justices joined him. Justice David Josiah Brewer did not participate due to a family emergency. Justice John Marshall Harlan was the lone dissenter.2Justia. Plessy v. Ferguson
The majority drew a line between political equality and social equality. The Fourteenth Amendment, the Court said, guaranteed equality before the law but was never meant to force the races to mingle socially or to abolish distinctions based on color. Requiring separate railroad cars, in this view, did not stamp African Americans as inferior. It was a matter of state policy.2Justia. Plessy v. Ferguson
Justice Brown went further and suggested that if Black citizens read the law as a mark of inferiority, the fault was in their interpretation rather than in the law. He noted that the white and Black railway cars were not meaningfully different in quality.2Justia. Plessy v. Ferguson
The Court also leaned on state police power. Under a “reasonableness” standard, any law a state legislature considered reasonable was treated as valid. That gave segregationists a broad legal shield: so long as a state called its facilities equal, federal courts would not intervene.
The Law the Court Upheld
Louisiana’s Separate Car Act of 1890 required every railway in the state to provide “equal but separate accommodations for the white and colored races” in different coaches or compartments. Train officers had to assign each passenger to a car based on race. A passenger who sat in the wrong car faced a fine of twenty-five dollars or up to twenty days in the parish jail. Conductors who assigned a passenger to the wrong car faced the same penalty. The statute also shielded railroads from liability for refusing to carry passengers who would not move.1National Archives. Plessy v. Ferguson (1896)
Homer Plessy, a New Orleans man who was seven-eighths white but classified as Black under Louisiana law, was arrested on June 7, 1892 after sitting in a whites-only compartment and refusing to move. His attorney, Albion Tourgée, argued at trial that the Act violated the Thirteenth and Fourteenth Amendments. Judge Ferguson ruled against him, and the Louisiana Supreme Court upheld the state law before granting Plessy a writ of error to the U.S. Supreme Court.1National Archives. Plessy v. Ferguson (1896)
Justice Harlan’s Lone Dissent
Harlan’s dissent has outlived the majority opinion. His central line has been quoted ever since: “Our constitution is color-blind, and neither knows nor tolerates classes among citizens. In respect of civil rights, all citizens are equal before the law.”3Legal Information Institute. Plessy v. Ferguson, 163 U.S. 537
He called the forced separation of passengers on a public highway “a badge of servitude wholly inconsistent with the civil freedom and the equality before the law established by the constitution.” Where the majority saw a reasonable use of state power, Harlan saw a direct violation of the Thirteenth and Fourteenth Amendments.3Legal Information Institute. Plessy v. Ferguson, 163 U.S. 537
He also predicted where the ruling would lead. If a state could segregate railroad passengers by race, what would stop it from segregating sidewalks, courtrooms, or legislative galleries? He compared the decision to the Dred Scott ruling of 1857 and warned that “the judgment this day rendered will, in time, prove to be quite as pernicious.” He dismissed the equal-accommodations rationale as a “thin disguise” that would “not mislead anyone, nor atone for the wrong this day done.”3Legal Information Institute. Plessy v. Ferguson, 163 U.S. 537
Thurgood Marshall, who later led the NAACP’s legal campaign against segregation, reportedly read from Harlan’s dissent during difficult stretches of that fight. The color-blind Constitution line became his favorite quotation.
What Losing Meant for Homer Plessy
After the Supreme Court upheld his conviction, Plessy’s case returned to the lower court. On January 11, 1897, he appeared again before Judge Ferguson, entered a guilty plea, and paid the twenty-five-dollar fine set by the Separate Car Act.
What the Ruling Did to the Country
Segregation laws existed in pockets before 1896. After Plessy, they spread quickly. Separate schools for white and Black children became mandatory across the South. Segregation reached theaters, restaurants, parks, hospitals, water fountains, and cemeteries.1National Archives. Plessy v. Ferguson (1896)
States also built barriers to voting. Poll taxes, literacy tests, and grandfather clauses stripped Black citizens of the ballot, even though those measures technically applied to everyone. Harlan’s prediction held: the logic of “separate but equal” traveled far beyond railroad cars and into nearly every part of public life.
How the Losing Side Eventually Won
“Separate but equal” survived for fifty-eight years. It began to fall on May 17, 1954, when the Supreme Court decided Brown v. Board of Education of Topeka unanimously. Chief Justice Earl Warren wrote that “in the field of public education, the doctrine of ‘separate but equal’ has no place. Separate educational facilities are inherently unequal.” The Court said the Plessy doctrine had no application in public schools.4National Archives. Brown v. Board of Education
Brown addressed schools. Segregation in restaurants, hotels, and other public places persisted in many states until Congress acted. Title II of the Civil Rights Act of 1964 prohibited discrimination based on race, color, religion, or national origin in places of public accommodation, covering hotels, restaurants, theaters, and similar establishments whose operations affect interstate commerce.5U.S. Department of Justice. Title II Of The Civil Rights Act (Public Accommodations)
The legal architecture Plessy built was dismantled piece by piece. The doctrine that seven justices endorsed in 1896 is now widely regarded as one of the Court’s worst mistakes, the outcome Harlan warned against from the bench.1National Archives. Plessy v. Ferguson (1896)