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When the 18th amendment was passed, prohibition came into effect.
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In 1920, the Steel Mill Srike og 1919 ended.
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In 1920, the first transcontinental airmail service was used.
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In 1921, the Emergency Quota Act was passed. This act set up a quota system. This system established the maximum number of immigrants that could enter the country.
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In 1921, Warren G. Harding became president.
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In 1921, annual farm income declined for 10 billion to just over 4 billion resulting in many farm forclosures.
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In 1921, Sacco and Vanzetti, two Italian immigrants, were convicted of the robbery and murder of a Mass. paymaster.
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The Reader's Digest was founded in 1922.
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The Fordnet-Cumber Tariff raised taxes on some U.S, imports to 60%- the highest level ever.
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Time magazine was founded in 1923.
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In 1923, Calvin Coolidge became president.
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In 1923, Warren G. Harding died suddenly, probably from a heart attack or stroke.
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In 1924 Louis Armstrong joined Fletcher Henderson's band and became the most important big jazz band in New York City.
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Immigration was limited from each European country to 2%.
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By 1924, KKK membership reached 4.5 million white male citizens.
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Tennessee passed a law that made it illegal to teach evolution.
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In 1926, Gertrude Ederle at the age of 19, was the first woman to swim across the English Channel.
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In 1927, Babe Ruth hit a record of 60 homeruns.
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In 1927, Bessie Smith became the highest paid black artist in the world.
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In 1927, Henry Ford introduced the Model A.
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In 1927, Charles A. Lindbergh was the first person to fly nonstop and solo across the Atlantic Ocean.
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In 1927, Sacco and Vanzetti died in the electric chair.
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Herbert Hoover was elected president in 1928.
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In 1929, the first cloverleaf intersection was built in New Jersey.
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By 1929, 82,000 African Americans had union membership. Thats less than 1% of their population.
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On this day, the bottom of the market fell out and the Great Deppression began.