Following World War I, the US entered a period of isolation and prosperity. The American economy was strong; industrialization and manufacturing during World War I had blossomed into a massive industry, generating new wealth.
Consumerism had spread to towns large and small, creating a new market for household appliances. This new American consumer culture was largely driven by a debt economy. This meant that many Americans bought goods such as cars, radios, and other gadgets on credit. This would prove to be negative for the American economy in the long term, but in the short term, it created artificial wealth.
American culture also shifted in the 1920s. There was a strong shift away from the traditional temperance movement and towards a more liberal way of thinking. The prohibition and temperance movement in the late 1910s saw the passage of the 18th amendment.
But after the end of World War I and the rise of prosperity, a culture of defiance was born. In cities, defying this federal law would become the norm at lavish parties. Thanks to a large black market of alcohol sales created by bootleggers, the 21st amendment eventually overturned the prohibition of alcohol created by the 18th amendment.