1) On April 9, 1867, the University of Minnesota was established as a land-grant university, making it one of the first universities in the United States to offer education to all qualified students regardless of social class.
2) On April 9, 1917, Minnesota Governor Winfield Scott Hammond signed a prohibition bill, making Minnesota the 18th state to prohibit the sale and production of alcohol. The law would remain in effect until the repeal of the 18th Amendment in 1933.
3) The St. Paul Police Department was established on April 9, 1854, making it one of the oldest police departments in the country.
4) On April 9, 1968, the University of Minnesota's computer science department installed a new IBM mainframe computer, marking a milestone in the development of computer science and technology in the state.
5) On April 9, 1979, the Minnesota Energy Conservation Revenue Bond Act was signed into law, promoting energy efficiency and conservation in the state through the issuance of revenue bonds.