After allying with the British during the Revolutionary War, the Dakota leader Wabasha leads 200 Dakota in an attack on Spanish positions at St. Louis.

The Minnesota Twins retire number 34, worn by fan favorite Kirby Puckett.

The Ku Klux Klan burns a cross at Mounds Park in St. Paul, probably in response to an alleged assault of a seventeen-year-old white woman by a Black man the previous day.

During the grasshopper plague, the state offers a bounty of fifty cents for each gallon of grasshopper eggs collected by this date.

The Minneapolis Daily Tribune is first published.

Author Bayard Taylor lectures in Minneapolis. A portion of the proceeds from his talk funds the Young Men's Literary Association, which would buy the books that form the original collection of the Minneapolis Public Library.

The Governor Ramsey, named after Alexander Ramsey, is the first steamboat to travel on the Mississippi River above the Falls of St. Anthony. Built in St. Anthony, the steamboat makes a twice-weekly run from the falls to Sauk Rapids.

John W. Vessey Jr. is born in Minneapolis. Vessey lied about his age to join the Minnesota National Guard in 1939. In World War II he fought in North Africa and at Anzio, Italy, where he won a Bronze Star and earned a battlefield commission as an officer. He won a Distinguished Service Cross in Vietnam and served as chairman of the Joint Chiefs of Staff under President Ronald Reagan from 1982 to 1985.

James J. Hill's Hotel Lafayette opens at Minnetonka Beach. It becomes one of the most popular resort hotels around the lake.

At Gettysburg, 262 members of the First Minnesota Volunteer Infantry Regiment charge a much larger Confederate force, succeeding in slowing their advance but resulting in 215 casualties—a stunning 82 percent. The next day, the remaining soldiers help repel Pickett's charge, capturing the flag of the Twenty-eighth Virginia Regiment in the process.