The Roaring Twenties was a decade of significant economic growth and widespread prosperity in the United States following World War I.

The era was marked by the rise of a new mass-production, mass-consumption economy.

New technologies like the automobile, the radio, and household appliances became widely available and transformed daily life.

The decade saw a cultural explosion, known as the 'Jazz Age,' with new forms of music and dance becoming popular.

The 19th Amendment, ratified in 1920, granted women the right to vote, and a new, more independent 'flapper' culture emerged.

The Harlem Renaissance was a major flourishing of African American art, literature, and music centered in Harlem, New York City.

The period was also marked by significant social tensions, including Prohibition (the nationwide ban on alcohol), the rise of the Ku Klux Klan, and anti-immigration sentiment.

Speculation in the stock market became widespread, with many people buying stocks 'on margin' (with borrowed money).

This speculative bubble contributed to the stock market crash of 1929.

The era's prosperity came to an abrupt end with the onset of the Great Depression.