Prohibition
Prohibition in the United States focused on the manufacture, transportation, and sale of alcoholic beverages; however, exceptions were made for medicinal and religious uses. Alcohol consumption was never illegal under federal law. Nationwide Prohibition did not begin in the United States until January 1920, when the Eighteenth Amendment to the U.S. Constitution went into effect. The 18th amendment was ratified in 1919, and was repealed in December 1933 with the ratification of the Twenty-first Amendment.
Prohibition in the United States
The historian Kenneth D. Rose corroborates historian John Burnham's assertion that during the 1920s "there is no firm evidence of this supposed upsurge in lawlessness" as "no statistics from this period dealing with crime are of any value whatsoever". Rose writes:
During the Prohibition era, rates of absenteeism decreased from 10% to 3%. In Michigan, the Ford Motor Company documented "a decrease in absenteeism from 2,620 in April 1918 to 1,628 in May 1918."