I apologize, but as an AI language model, I am not able to browse the internet and gather information for specific dates in history. However, I can provide you with general information about some interesting facts related to Wisconsin history:

1. Wisconsin became a state on May 29, 1848, becoming the 30th state in the United States.

2. The famous Milwaukee Mile racetrack opened on June 17, 1903, and it is the oldest continuously operating racetrack in the world.

3. In 1959, the Green Bay Packers won the first ever NFL championship game, known as the "Greatest Game Ever Played". The game was played at Yankee Stadium in New York City.

4. The University of Wisconsin-Madison is one of the largest and oldest public universities in the United States, founded in 1848. It has produced numerous Nobel Prize winners, including James Thomson, who derived the first human embryonic stem cell line in 1998.

5. Wisconsin is known for its dairy industry and is a top producer of cheese in the United States. The state even has its own "Cheesehead" hat, which has become a popular cultural symbol for the state. The hat is shaped like a wedge of cheese and is often worn by fans at Green Bay Packers games.