Utah becomes the 36th U.S. state to ratify the 21st Amendment to the United States Constitution, thus establishing the required 75% of states needed to overturn the 18th Amendment which had made the sale of alcohol illegal. But the criminal gangs that had gained power during Prohibition are now firmly established, and maintain an influence that continues unabated for decades.

During an overwater navigation training flight from Fort Lauderdale, five U.S. Navy TBM Avenger torpedo-bombers lose radio contact with their base and vanish. The disappearance takes place in what is popularly known as the Bermuda Triangle.

U.S. President Woodrow Wilson sails to Europe for the World War I peace talks in Versailles, France, becoming the first U.S. president to travel to Europe while in office.

In the U.S., a manslaughter trial against actor/director Roscoe 'Fatty' Arbuckle ends with the jury deadlocked as to whether he had killed aspiring actress Virginia Rappe during rape and sodomy. Arbuckle was finally cleared of all wrongdoing after two more trials, but the scandal ruined his career and personal life.

In California, Police arrest over 800 students at the University of California, Berkeley, following their takeover and sit-in at the administration building in protest at the UC Regents' decision to forbid protests on university property.

Unemployment figures are released revealing that the U.S. unemployment rate has fallen to 3.3 percent, the lowest rate for almost fifteen years. Going forward all the way to the current day, the figure never reaches this low level again.