From Plessy v. Ferguson to Brown v. Board of Education: The Supreme Court Rules on School Desegregation. by Karen Wolff Plessy v. Ferguson. An 1896 decision by the Supreme Court, Plessy v. Ferguson, 163 U.S. 537, 16 S. Ct. 1138, 41 L. Ed. 256, upheld the constitutionality of an 1890. Plessy v. Ferguson. West's Encyclopedia of American Law. 2005. Encyclopedia.com. (February 14, 2016). MLA Citation: Plessy vs. Ferguson. 123HelpMe.com. 12 Feb 2016 . Related Articles. What You Should Know About the Notorious Plessy v. Ferguson Decision; The Historical Significance of Brown v. Board of Education MLA style: Plessy v. Ferguson. Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2016. Web. 15 Feb. 2016 . MLA Citation: Plessy vs. Ferguson. 123HelpMe.com. 14 Feb 2016 . Plessy v. Ferguson. In 1890 a new Louisiana law required railroads to provide “equal but separate accommodations for the white, and colored, races.” Citation: Plessy vs. Ferguson, Judgement, Decided May 18, 1896; Records of the Supreme Court of the United States; Record Group 267; Plessy v. Plessy Vs. Ferguson. Plessy Vs. Ferguson In 1896 the Supreme Court had held in Plessy vs. Ferguson that racial segregation was.