Minnesota Mining and Manufacturing Company (3M) announces the invention of a machine for the mass recording of magnetic audio tape.

Private Milburn Henke of Hutchinson, serving with the American Expeditionary Force, is the first enlisted man deployed to Europe in World War II.

St. Paul's Mansion House hotel burns to the ground after a fire starts in the kitchen and there is a delay in getting enough hose for a steam fire engine."The circumstances . . . strongly point to incendiarism as the cause," remarks the St. Paul Pioneer, noting that a fire set in the same place nearly destroyed the hotel in fall 1865.

William Rubin, former president of Flight Transportation Corporation of Eden Prairie, and Janet Karki, his chief financial officer, are found guilty by a federal jury in St. Paul of perpetrating "the largest financial fraud in Minnesota's history" by engineering a sale of about $25 million in stock for a mostly fictitious company.

Milton Reynolds, an Albert Lea native who became a millionaire by his astute and early mass production and promotion of a new type of ball-point pen in the 1940s, dies in Chicago.

The three-day trial of Lake Charles resident Ben Shock, charged with not having a license for his beagle, begins. Declaring a case of mistaken identity, Shock claims that his beagle had died and that the license fee collector had seen him with another beagle. Shock refuses to pay bail and is jailed for thirty days while the judge ponders the case, finally ruling that Shock had been wronged and should be set free.

First National Bank of Minneapolis commences business with a capital of $50,000. With beginnings in a private bank co-owned by its first president, Jacob K. Sidle, the institution would go through several name changes, celebrating seventy-five years in business in 1939 as First National Bank and Trust Company of Minneapolis and then reverting to its original name in 1943.

KSJR (St. John's Radio) begins broadcasting rock music from St. John's University in Collegeville even though it is station devoted to classical music and the fine arts. KSJR would develop into Minnesota Public Radio, one of the largest and most successful public radio systems in the country.

An out-of-control car careens over the side of St. Paul's High Bridge, lands upside-down on a row of telephone wires, rebounds into the air, and lands on its four wheels. Amazingly, no injuries are reported in the seventy-five-foot fall.

Five Benedictine monks obtain a charter to establish St. John's Seminary in Collegeville. The seminary evolves into St. John's University, the oldest Catholic institution of higher learning in the state.