 As the head of the Legal Defense Fund, he argued many other civil rights cases before the Supreme Court, most of them successfully, including "Smith v. Allwright", 321 U.S. 649 (1944); "Shelley v. Kraemer", 334 U.S. 1 (1948); "Sweatt v. Painter", 339 U.S. 629 (1950); and "McLaurin v. Oklahoma State Regents", 339 U.S. 637 (1950).His most famous case as a lawyer was "Brown v. Board of Education of Topeka", 347 U.S. 483 (1954), the case in which the Supreme Court ruled that "separate but equal" public education, as established by "Plessy v. Ferguson", was not applicable to public education because it could never be truly equal.In total, Marshall won 29 out of the 32 cases he argued before the Supreme Court.