1. In 1866, the University of Wisconsin in Madison was founded. It has since become one of the leading public universities in the country, known for its research and academic programs.

2. On October 30, 1905, Wisconsin's first state forest was established in the Chequamegon-Nicolet National Forest. The forest covers over 1.5 million acres of land in Northern Wisconsin and provides habitat for a variety of wildlife, including deer, bear, and wolves.

3. Wisconsin's most notorious serial killer, Ed Gein, was apprehended on October 30, 1957. Gein was known for his macabre crimes, including grave-robbing and the murder of several women. He inspired the character of Norman Bates in the book and movie "Psycho."

4. On this day in 1974, Hank Aaron was traded from the Atlanta Braves to the Milwaukee Brewers. Aaron went on to play two seasons with the Brewers before retiring in 1976. He is considered one of the greatest baseball players of all time, holding the record for most career home runs until it was surpassed by Barry Bonds.

5. In 2010, Scott Walker was elected as the 45th governor of Wisconsin on October 30. Walker served as governor from 2011-2019, during which time he implemented controversial policies including Act 10, a law that significantly limited the collective bargaining rights of public employees.