March 4: Franklin Delano Roosevelt is inaugurated as the 32nd president of the United States.
May 22: Dillinger's stepmother is dying and he is released on parole from Michigan City Prison, thanks to a petition signed by 184 Mooresville residents. By the time he arrives home, his stepmother is already dead.
June 10: Dillinger robs his first bank, in New Carlisle, Ohio. He takes $10,600.
June 17: Men armed with machine guns try to free prison escapee Frank Nash from special agents who have recaptured him, in the Kansas City Massacre. Nash is killed, as are one special agent and three other law enforcement officials. Pretty Boy Floyd and two accomplices are blamed, but the crime remains unsolved to this day.
July 27: President Roosevelt meets with Attorney General Homer S. Cummings to discuss a "super-police force" to fight interstate crime. He says he will use the Bureau of Investigation.
The American Catholic Bishops call for Hollywood to stop producing offensive films glorifying gangster life, in an effort that will create the Legion of Decency in April 1934 and a nationwide pledge by concerned Catholics to boycott gangster movies.
August 10: The Bureau of Investigation is expanded and renamed the Division of Investigation (D.O.I.).
September 22: After committing several robberies, Dillinger is arrested in Dayton, Ohio, and sent to the Allen County Jail in Lima, Ohio.
September 26: Using guns smuggled in by Dillinger, ten men escape from the Indiana State Prison. Among them are Harry Pierpont, Charles Makley, John Hamilton, Walter Dietrich, and Russell Clark, who will later form the Dillinger gang.
October 12: Pierpont, Makley, and Clark free Dillinger from jail in Lima, Ohio. Pierpont kills Sheriff Jesse Sarber in the process.
October 23: The Dillinger gang robs Central National Bank in Greencastle, Indiana. They take $75,000.
December 5: Prohibition is repealed by the 21st Amendment.
December 16: The Chicago Police Department forms the "Dillinger Squad." It comprises 40 men and is led by Captain John Stege.
December 20: The Dillinger gang goes to Florida for a vacation. Dillinger brings his girlfriend, Evelyn "Billie" Frechette.