1. On January 22, 1795, the United States government and Native American representatives signed the Treaty of Greenville, which ceded much of present-day Ohio to the United States and ended the Northwest Indian War. The treaty opened up new lands for settlement, including in Wisconsin, and paved the way for the state's eventual statehood.

2. January 22, 1843, marks the birth of Frederic March, a Wisconsin native and acclaimed actor who won two Academy Awards for his roles in "Dr. Jekyll and Mr. Hyde" and "The Best Years of Our Lives." March was born in Racine and grew up in Watertown before pursuing a career in acting.

3. On January 22, 1892, the first ice hockey game was played in Milwaukee's indoor rink, the Plankinton House. The game featured the Milwaukee Clarks and the Chicago Athletic Association, ending in a 4-1 victory for the visitors. This event helped to spark interest in ice hockey in Wisconsin, leading to the formation of the Milwaukee Admirals and the University of Wisconsin-Madison's men's ice hockey program.

4. In 1924, the first radio station in Wisconsin, WIBA, made its debut on January 22. The station, which broadcast from Madison, played a mix of music, news, and weather updates. WIBA helped to popularize radio in the state and paved the way for the many other stations that followed.

5. On January 22, 2013, Wisconsin Governor Scott Walker signed a controversial bill into law that effectively ended collective bargaining for most public employees in the state. The law sparked protests and a recall effort against the governor, who ultimately survived the recall election later that year. The legacy of the law continues to be debated in Wisconsin and throughout the country.