Read this article, which takes its name from John Kenneth Galbraith's book about the postwar economic boom and political culture. It was undoubtedly an unprecedented time in American history, but it ultimately did not quite match mainstream expectations.
Race and Education

School desegregation was a tense experience for all involved, but none more so than the African American students who integrated white schools. The Little Rock Nine were the first to do so in Arkansas. Their escorts, the 101st Airborne Division of the U.S. Army, protected students who took that first step in 1957.
Older battles over racial
exclusion also confronted postwar American society. One long-simmering
struggle targeted segregated schooling. In 1896, the Supreme Court
declared the principle of "separate but equal" constitutional.
Segregated schooling, however, was rarely "equal": in practice, Black
Americans, particularly in the South, received fewer funds, attended
inadequate facilities, and studied with substandard materials. African
Americans' battle against educational inequality stretched across half a
century before the Supreme Court again took up the merits of "separate
but equal".
On May 17, 1954, after two years of argument, re-argument, and deliberation, Chief Justice Earl Warren announced the Supreme Court's decision on segregated schooling in Brown v. Board of Education (1954). The court found by a unanimous 9–0 vote that racial segregation violated the Equal Protection Clause of the Fourteenth Amendment. The court's decision declared, "Separate educational facilities are inherently unequal". "Separate but equal" was made unconstitutional.14
Decades of African American–led litigation, local agitation against racial inequality, and liberal Supreme Court justices made Brown possible. In the early 1930s, the NAACP began a concerted effort to erode the legal underpinnings of segregation in the American South. Legal, or de jure, segregation subjected racial minorities to discriminatory laws and policies.
Law and custom in the
South hardened anti-Black restrictions. But through a series of carefully
chosen and contested court cases concerning education,
disfranchisement, and jury selection, NAACP lawyers such as Charles
Hamilton Houston, Robert L. Clark, and future Supreme Court Justice
Thurgood Marshall undermined Jim Crow's constitutional underpinnings.
These attorneys initially sought to demonstrate that states
systematically failed to provide African American students "equal"
resources and facilities, and thus failed to live up to Plessy. By the
late 1940s activists began to more forcefully challenge the assumptions
that "separate" was constitutional at all.
The NAACP was a key organization in the fight to end legalized racial discrimination. In this 1956 photograph, NAACP leaders, including Thurgood Marshall, who would become the first African American Supreme Court Justice, hold a poster decrying racial bias in Mississippi in 1956. Library of Congress.
Though remembered as just one lawsuit, Brown v. Board of Education consolidated five separate cases that had originated in the southeastern United States: Briggs v. Elliott (South Carolina), Davis v. County School Board of Prince Edward County (Virginia), Beulah v. Belton (Delaware), Bolling v. Sharpe (Washington, D.C.), and Brown v. Board of Education (Kansas). Working with local activists already involved in desegregation fights, the NAACP purposely chose cases with a diverse set of local backgrounds to show that segregation was not just an issue in the Deep South, and that a sweeping judgment on the fundamental constitutionality of Plessy was needed.
Briggs v. Elliott, the first case accepted by the NAACP, illustrated the plight of segregated Black schools. Briggs originated in rural Clarendon County, South Carolina, where taxpayers in 1950 spent $179 to educate each white student and $43 for each Black student. The district's twelve white schools were cumulatively worth $673,850; the value of its sixty-one Black schools (mostly dilapidated, overcrowded shacks) was $194,575.15
While Briggs underscored the South's failure to
follow Plessy, the Brown suit focused less on material disparities
between Black and white schools (which were significantly less than in
places like Clarendon County) and more on the social and spiritual
degradation that accompanied legal segregation. This case cut to the
basic question of whether "separate" was itself inherently unequal. The
NAACP said the two notions were incompatible. As one witness before the
U.S. District Court of Kansas said, "The entire colored race is craving
light, and the only way to reach the light is to start [black and white]
children together in their infancy and they come up together".16
To
make its case, the NAACP marshaled historical and social scientific
evidence. The Court found the historical evidence inconclusive and drew
their ruling more heavily from the NAACP's argument that segregation
psychologically damaged Black children. To make this argument,
association lawyers relied on social scientific evidence, such as the
famous doll experiments of Kenneth and Mamie Clark. The Clarks
demonstrated that while young white girls would naturally choose to play
with white dolls, young Black girls would, too. The Clarks argued that
Black children's aesthetic and moral preference for white dolls
demonstrated the pernicious effects and self-loathing produced by
segregation.
Identifying and denouncing injustice, though, is
different from rectifying it. Though Brown repudiated Plessy, the
Court's orders did not extend to segregation in places other than public
schools and, even then, to preserve a unanimous decision for such an
historically important case, the justices set aside the divisive yet
essential question of enforcement. Their infamously ambiguous order in
1955 (what came to be known as Brown II) that school districts
desegregate "with all deliberate speed" was so vague and ineffectual
that it left the actual business of desegregation in the hands of those
who opposed it.

In 1959, photographer John Bledsoe captured this image of the crowd on the steps of the Arkansas state capitol building protesting the federally mandated integration of Little Rock's Central High School. This image shows how worries about desegregation were bound up with other concerns, such as the reach of communism and government power. Library of Congress.
In most of the South, as well as the rest of the country, school integration did not occur on a wide scale until well after Brown. Only in the 1964 Civil Rights Act did the federal government finally implement some enforcement of the Brown decision by threatening to withhold funding from recalcitrant school districts, but even then southern districts found loopholes. Court decisions such as Green v. New Kent County (1968) and Alexander v. Holmes (1969) finally closed some of those loopholes, such as "freedom of choice" plans, to compel some measure of actual integration.
When Brown finally was enforced in the South, the quantitative impact was staggering. In 1968, fourteen years after Brown, some 80 percent of school-age Black southerners remained in schools that were 90 to 100 percent nonwhite. By 1972, though, just 25 percent were in such schools, and 55 percent remained in schools with a simple nonwhite minority. By many measures, the public schools of the South became, ironically, the most integrated in the nation.17
As a landmark moment in American history, Brown's significance perhaps lies less in immediate tangible changes - which were slow, partial, and inseparable from a much longer chain of events - than in the idealism it expressed and the momentum it created. The nation's highest court had attacked one of the fundamental supports of Jim Crow segregation and offered constitutional cover for the creation of one of the greatest social movements in American history.