Setting up a private practice in his home state of Maryland, Marshall quickly established a reputation as a lawyer for the “little man.” In a year’s time, he began working with the Baltimore NAACP (National Association for the Advancement of Colored People), and went on to become the organization’s chief counsel by the time he was 32, in 1940. Over the next two decades, Marshall distinguished himself as one of the country’s leading advocates for individual rights, winning 29 of the 32 cases he argued in front of the Supreme Court, all of which challenged in some way the ‘separate but equal’ doctrine that had been established by the landmark case Plessy v. Ferguson (1896). The high-water mark of Marshall’s career as a litigator came in 1954 with his victory in Brown v. Board of Education of Topeka. In that case, Marshall argued that the ‘separate but equal’ principle was unconstitutional, and designed to keep Black people “as near [slavery] as possible.”
In 1961, Marshall was appointed by then-President John F. Kennedy to the U.S. Court of Appeals for the Second Circuit, a position he held until 1965, when Kennedy’s successor, Lyndon B. Johnson, named him solicitor general. Following the retirement of Justice Tom Clark in 1967, President Johnson appointed Marshall to the Supreme Court, a decision confirmed by the Senate with a 69-11 vote. Over the next 24 years, Justice Marshall came out in favor of abortion rights and against the death penalty, as he continued his tireless commitment to ensuring equitable treatment of individuals—particularly minorities—by state and federal governments.