A trustbuster, senator, secretary of state, Nobel laureate, and World Court judge, Frank Kellogg rose from a small farm in Olmsted County to being the highest-ranking diplomat in the United States. He is remembered as one of the authors of the 1928 Pact of Paris, a multi-lateral treaty that renounced aggressive war as a matter of national policy.

The Sister Kenny Institute, opened in 1942, was a world-renowned center for polio treatment. Founded by Australian nurse Elizabeth Kenny, it was an early leader in the field of rehabilitation medicine and remains a prominent center for rehabilitation treatment and research.

From 1881 to 1920, the Minnesota Woman Suffrage Association (MWSA) struggled to secure women's right to vote. Its members organized marches, wrote petitions and letters, gathered signatures, gave speeches, and published pamphlets and broadsheets to force the Minnesota Legislature to recognize their right to vote. Due in part to its efforts, the legislature ratified the Nineteenth Amendment in 1919.

Writer and activist Irene Levine Paull was born in Duluth to Jewish parents. Faced with discrimination because of her ethnicity, gender, and political views, Paull fought for the rights of people who were oppressed.

When the Fergus Falls State Hospital opened its doors on July 29, 1890, it became the first state institution in northern Minnesota for patients considered insane. The hospital had a sprawling campus and large stately buildings, built according to the influential asylum plan developed by Philadelphia physician Thomas Kirkbride in the 1850s.

Swedish immigrant Hans Mattson was a prominent immigration booster and politician. Working for the state and for private companies, he recruited many Swedish and Norwegian immigrants to Minnesota during the late nineteenth century. He was also the first Scandinavian elected to Minnesota office. During his lifetime, Colonel Mattson was one of the best-known Swedish Americans in United States politics.

The botched execution of William Williams was the last in Minnesota. After newspapers broke state law to report on the event, public opinion turned firmly against the death penalty, and it was repealed in 1911.

Artist Alexis Jean Fournier is well known in Minnesota for his atmospheric paintings of Minneapolis and St. Paul landscapes. Fournier is also renowned beyond Minnesota as an important figure in the Arts and Crafts movement.

Patented in 1915, the ensilage harvester improved on standard practices for harvesting and storing crops, and streamlined farm work. Its basic design, largely unmodified, is still used by agricultural implement companies worldwide.

In 1904, Red Wing became home to T. B. Sheldon Memorial Auditorium, one of the first municipal theaters in the United States. It has shown live performances or movies for more than a century, in spite of financial trouble, lawsuits, and fluctuations in audience interest.