The National Association for the Advancement of Colored People (NAACP) took the lead in efforts to overturn the judicial doctrine, established in the Supreme Court case Plessy v. Ferguson in 1896, that segregation of African-American and white students was constitutional if facilities were "separate but equal." That decree had been used for decades to sanction rigid segregation in all aspects of Southern life, where facilities were seldom, if ever, equal.

African Americans achieved their goal of overturning Plessy in 1954 when the Supreme Court -- presided over by an Eisenhower appointee, Chief Justice Earl Warren -- handed down its Brown v. Board of Education ruling. The Court declared unanimously that "separate facilities are inherently unequal," and decreed that the "separate but equal" doctrine could no longer be used in public schools. A year later, the Supreme Court demanded that local school boards move "with all deliberate speed" to implement the decision.

Eisenhower, although sympathetic to the needs of the South as it faced a major transition, nonetheless acted to see that the law was upheld in the face of massive resistance from much of the South. He faced a major crisis in Little Rock, Arkansas, in 1957, when Governor Orval Faubus attempted to block a desegregation plan calling for the admission of nine black students to the city's previously all-white Central High School. After futile efforts at negotiation, the president sent federal troops to Little Rock to enforce the plan.

Rosa Parks sits in one of the front seats of a city bus following the successful boycott of the bus system in 1955-56 by African-American citizens of Montgomery, Alabama. The boycott was organized to protest the practice of segregation in which African Americans were forced to sit in the back of the bus. The Supreme Court agreed that this practice was a constitutional violation a year after the boycott began. The great leader of the civil rights movement in America, Martin Luther King Jr., gained national prominence through the Montgomery bus boycott.
(© Bettmann/CORBIS)

Governor Faubus responded by ordering the Little Rock high schools closed down for the 1958-59 school year. However, a federal court ordered them reopened the following year. They did so in a tense atmosphere with a tiny number of African-American students. Thus, school desegregation proceeded at a slow and uncertain pace throughout much of the South.

Another milestone in the civil rights movement occurred in 1955 in Montgomery, Alabama. Rosa Parks, a 42-year-old African-American seamstress who was also secretary of the state chapter of the NAACP, sat down in the front of a bus in a section reserved by law and custom for whites. Ordered to move to the back, she refused. Police came and arrested her for violating the segregation statutes. African-American leaders, who had been waiting for just such a case, organized a boycott of the bus system.

Martin Luther King Jr., a young minister of the Baptist church where the African Americans met, became a spokesman for the protest. "There comes a time," he said, "when people get tired ... of being kicked about by the brutal feet of oppression." King was arrested, as he would be again and again; a bomb damaged the front of his house. But African Americans in Montgomery sustained the boycott. About a year later, the Supreme Court affirmed that bus segregation, like school segregation, was unconstitutional. The boycott ended. The civil rights movement had won an important victory -- and discovered its most powerful, thoughtful, and eloquent leader in Martin Luther King Jr.

African Americans also sought to secure their voting rights. Although the 15th Amendment to the U.S. Constitution guaranteed the right to vote, many states had found ways to circumvent the law. The states would impose a poll ("head") tax or a literacy test -- typically much more stringently interpreted for African Americans -- to prevent poor African Americans with little education from voting.

Eisenhower, working with Senate majority leader Lyndon B. Johnson, lent his support to a congressional effort to guarantee the vote. The Civil Rights Act of 1957, the first such measure in 82 years, marked a step forward, as it authorized federal intervention in cases where African Americans were denied the chance to vote. Yet loopholes remained, and so activists pushed successfully for the Civil Rights Act of 1960, which provided stiffer penalties for interfering with voting, but still stopped short of authorizing federal officials to register African Americans.

Relying on the efforts of African Americans themselves, the civil rights movement gained momentum in the postwar years. Working through the Supreme Court and through Congress, civil rights supporters had created the groundwork for a dramatic yet peaceful "revolution" in American race relations in the 1960s.