1. On April 6, 1947, the University of Wisconsin-Madison men's basketball team won their first NCAA basketball championship. The Badgers defeated the Washington Huskies 39-34 in the final game held in New York City.

2. On April 6, 1853, the first trademark was granted in Wisconsin to George Engelmann for his invention of a "Portable Steam Engine." This invention helped farmers to more easily plow and cultivate their land.

3. On April 6, 1975, a tornado struck Barneveld, Wisconsin, killing 9 people and destroying much of the town. It is considered one of the deadliest tornadoes in Wisconsin history.

4. On April 6, 1889, the Wisconsin State Capitol officially opened to the public. The building, located in Madison, is one of the most recognizable landmarks in the state and features a dome made of Wisconsin granite.

5. On April 6, 1930, Wisconsin native Charlotte Perry became the first female police chief in the United States. Perry was appointed as police chief of the town of Green Lake, Wisconsin, and remained in the position for over 30 years.