During the 1920s, some freedoms were expanded while others were curtailed. The 18th Amendment to the Constitution, ratified in 1919, had banned the manufacture and sale of “intoxicating liquors,” and at 12 A.M. on January 16, 1920, the federal Volstead Act closed every tavern, bar and saloon in the United States. From then on, it was illegal to sell any “intoxication beverages” with more than 0.5% alcohol. This drove the liquor trade underground–now, people simply went to nominally illegal speakeasies instead of ordinary bars–where it was controlled by bootleggers, racketeers and other organized-crime figures such as Chicago gangster Al Capone. (Capone reportedly had 1,000 gunmen and half of Chicago’s police force on his payroll.)
To many middle-class white Americans, Prohibition was a way to assert some control over the unruly immigrant masses who crowded the nation’s cities. For instance, to the so-called “Drys,” beer was known as “Kaiser brew.” Drinking was a symbol of all they disliked about the modern city, and eliminating alcohol would, they believed, turn back the clock to an earlier and more comfortable time.