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Political and Social History
The 18th Amendment (Prohibition Amendment) goes into effect at midnight. Although the law is challenged in some states (New Jersey), the Supreme Court later declares the law valid. -
First regularly broadcast radio
Station KDKA in Pittsburgh, Pennsylvania, initiates regular radio broadcasts, the first station to do so -
Emergency Quota Act
The Emergency Quota Act restricts immigration by setting limits based on the number of foreign-born people already in the country in 1910. Immigration must not exceed three percent of each nationality already in the United States in that year. -
Wage cuts
Wage cuts and massive unemployment cause unrest and an increase in violence. The newly formed Hoover Commission suggests price cuts and shorter hours rather than an increase in wages; the average working day is 12-14 hours. -
American Birth Control League
Margaret Sanger forms the American Birth Control League