The Minnesota Immigration with Dignity March draws more than 30,000 people who support extending legal status to undocumented workers. Championing family reunification and comprehensive reform, immigrants and their supporters march from the Cathedral of St. Paul to the state capitol.

Three Minnesota National Guardsmen—David Day of St. Louis Park, Jesse Lhotka of Appleton, and Jason Timmerman of Tracy—are killed in Iraq, marking the deadliest day for Minnesota soldiers since Vietnam. Sergeant Lhotka is credited with saving a fellow guardsman's life and helping evacuate another soldier before being killed by the roadside blast.

Telegraph service reaches Minneapolis.

Floyd B. Olson is born in Minneapolis. He was the first Farmer-Labor governor, serving from 1931 until his death on August 22, 1936. He is remembered for implementing New Deal policies and for his skilled negotiating during the 1933 Hormel strike in Austin and the 1934 teamsters' strike in Minneapolis.

Charles M. Loring is born in Portland, Maine. As Minneapolis park commissioner from 1883 to 1890, he would be a principal player in the development of the city's system of parks, public grounds, and children's playgrounds. He would be the driving force behind creation of Victory Memorial Drive; Loring Community School is named for him. Central Park would be renamed Loring Park, also in his honor.

Two members of Alcoholics Anonymous visit Minnesota to watch a football game and to contact people who have asked for help with their drinking problems. They connect with one, B. Patrick Cronin, who later dated his sobriety to November 11, 1940, and helped start more than 450 AA groups in the Midwest.

George A. Hormel launches his packinghouse in Austin, operating out of an old creamery.

In the aftermath of the US‒Dakota War, a mob of settler colonists attacks a group of Dakota captives in New Ulm. The troops guarding the captives manage to restore order. Five days later, in Henderson, settler colonists attack Dakota captives being marched to Fort Snelling. They kill one Dakota infant before soldiers disperse the crowd.

Minnesota citizens are allowed to vote for all nine of the state's congressional seats because the legislature had failed to reapportion the districts following the census of 1930.

The old Mendota bridge to Fort Snelling opens and is dedicated to the men of the 151st Field Artillery who had been killed in World War I.