In 1900, the average family in the USA had an annual income of $3,000 (in today's dollars). The family had no indoor plumbing, no phone, and no car. About half of all American children lived in poverty. Most teens did not attend school; instead, they labored in factories or fields.'

During the 1950s, a sense of uniformity pervaded American society. Conformity was common, as young and old alike followed group norms rather than striking out on their own. Though men and women had been forced into new employment patterns during World War II, once the war was over, traditional roles were reaffirmed.

The 1960s was a decade when hundreds of thousands of ordinary Americans gave new life to the nation's democratic ideals. African Americans used sit-ins, freedom rides, and protest marches to fight segregation, poverty, and unemployment. Feminists demanded equal job opportunities and an end to sexual discrimination.

The 1970s were a tumultuous time. In some ways, the decade was a continuation of the 1960s. Women, African Americans, Native Americans, gays and lesbians and other marginalized people continued their fight for equality, and many Americans joined the protest against the ongoing war in Vietnam.