Pine City records a high temperature of 108 degrees.

The North Stars professional hockey team plays its final game in the Met Center against the Chicago Blackhawks, losing 3-2. The team moves to Dallas later that year.

Rod Carew plays his first major league baseball game with the Minnesota Twins, hitting a single.

A warrant is issued for the arrest of Joseph Friedman, operator of the Tower Theater in St. Paul, where he had shown clips of the Dempsey-Gibbons boxing match. Tommy Gibbons, a St. Paulite who later became Ramsey County sheriff, went fifteen rounds with heavyweight champion Jack Dempsey in Montana on July 4, 1923. Because boxing was illegal in some states at this time, interstate shipment of such pictures was outlawed, and Friedman would be charged with "receiving and exhibiting fight films in violation of Federal law."

In Washington, D.C., the Bois Forte Ojibwe sign a treaty ceding their lands in St. Louis and Koochiching Counties and establishing the Nett Lake Reservation.

The St. Paul post office is established in Henry Jackson's store.

In the Metrodome's first regular-season baseball game, the Minnesota Twins lose to the Seattle Mariners, 11-7.

The ore boat C. L. Austin picks up the first load of taconite at Silver Bay.

The first known baptism in the upper Mississippi River occurs in St. Paul. Schoolteacher Harriet E. Bishop had written the Baptist Home Missionary Society requesting a preacher, and the Reverend J. P. Parsons arrived in May 1849. The First Baptist Church was organized soon after, holding meetings in the schoolhouse on Jackson Street.

James M. Goodhue publishes the first issue of the Minnesota Pioneer, the territory's first newspaper.