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Radio Broadcasting
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Volstead Act
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Earle Dickson - Bandaid
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The Washington Naval Conference
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Period: to
Warren G. Harding as US President
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Fordney-McCumber Tariff Act
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Insulin Injections for Diabetics
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Traffic signal
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Period: to
Calvin Coolidge as US President
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Immigration Act
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Coal mine explosion kills 171 at Castle Gate Utah
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The Dawes Plan
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President Coolidge signs immigration law restricting immigration
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Boston, Massachusetts, opens its airport
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First National Ku Klux Klan March - Washington D.C
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Louis Armstrong records 1st of Hot Five & Hot Seven recordings
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First Liquid Feuled Rocket flight - Robert Doddard
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The Geneva Naval Conference
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Home Refrigeration
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First regular television broadcast
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Alaxander Fleming - Penicillin
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Red Line Agreement
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The Kellogg-Briand Pact
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St. Valentines Day Massacre - Al Capone
