Here are five interesting facts about October 15 in Wisconsin history:

1. In 1926, the Milwaukee County Zoo officially opened to the public. It was one of the first zoos in the country to have naturalistic animal habitats instead of cages.

2. In 1883, the first game of American football played in Wisconsin took place between Carroll College and Racine College. Carroll College won 10-0.

3. In 1834, the University of Wisconsin-Madison, then known as the University of the Territory of Wisconsin, was established. It was one of the first public universities in the country.

4. In 1969, the first Domestic Abuse hotline in the country started operating in Milwaukee. It remains an important resource for victims of domestic violence today.

5. In 1967, singer and songwriter Amy Ray was born in Decatur, Georgia. Ray is best known as one half of the folk duo Indigo Girls, but has also released several solo albums and is known for her activism in progressive causes.