The U.S. Congress passes the Volstead Act over President Woodrow Wilson's veto, paving the way for alcohol Prohibition to begin the following January. The Act, named for Chairman of the House Judiciary Committee Andrew Volstead, was supposed to create a better society but instead helped lead to the rise of violent organized crime gangs. The law wouldn't be repealed until 1933.

During the second day of the event known as the March on Rome, Fascist leader Benito Mussolini officially takes control of the Italian government when King Victor Emmanuel III cedes power. Supported by a coalition of military, business, and right-wing leaders, Mussolini remains in power until 1943, when defeat in World War II begins to look inevitable.

The U.S. prison population tops 1 million for the first time in American history. By 2008 the U.S. Justice Department pegs the number of imprisoned at 2.3 million, and the overall U.S. correctional population, i.e. those in jail, prison, on probation or on parole, at 7.3 million, or 1 in every 31 adults.

The Conservative Party wins the British general election, making Winston Churchill prime minister for the second time. Churchill is nearly 76 at the time, making him the second oldest prime minister in history after William Gladstone. Churchill remains PM until 1955, when he steps down at 81 due to ill health.

In Australia, Eric Edgar Cooke, who had earned the nickname Night Caller, is hanged after being convicted of murder. He had terrorized Perth for four years, committing 22 violent crimes, eight of which resulted in deaths. He becomes the last person to be executed in Western Australia.