The so-called "roaring '20s" were a response to years of hardship. World War I ended in 1918, but the world soon experienced two more curveballs.
Spectators in New York City celebrate the end of World War I.
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Toward the end of 1918, the Spanish flu started to rear its head. The pandemic - which didn't originate in Spain, despite its name - lasted for two years and claimed an estimated 50 million lives. One in every 15 Americans died.
Quarantine and mask-wearing were among measures used to combat the spread of the virus, as shown in a newspaper clip from January 1919.
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After the pandemic, the US economy experienced a post-war recession that lasted from 1920 until 1921. Wholesale prices plunged to lower levels than the Great Recession of 1929, and unemployment spiked.
Unemployed workers sleep on the grass in New York's Central Park, 1921.
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Following the 1918 influenza pandemic and recession, people were ready to party, socialize, spend, and sin.
A couple dances in the 1920s.
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Jazz exploded, ushering in dances like the Charleston and female dancers known as flappers. Flappers flouted traditional ideals and wore a style of dress popularized by Coco Chanel that featured dropped waists and creeping hemlines.
Flappers kicking and dancing while musicians perform during a Charleston dance contest at the Parody Club in January 1926.
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In Harlem, New York, the Cotton Club emerged as a hub of music and culture, where the well-to-do would line up to see the latest dances and hear the latest jazz scores.
Floor show at The Cotton Club in the 1920s.
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Ladies often gathered for outdoor tea parties, donning hats and breezy dresses.
Mary Pickford (front center) is surrounded by fellow Warner Brothers actresses during a tea party, 1928.
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