1. On January 5, 1927, the first scheduled commercial airline flight between Milwaukee and Chicago took place. The flight was operated by National Air Transport, Inc. and took approximately 45 minutes.

2. The same day in 1959, Wisconsin's State Capitol building was added to the National Register of Historic Places. The Capitol, located in Madison, was first completed in 1917 and is known for its distinctive dome.

3. January 5, 1960, marked the opening of the University of Wisconsin-Milwaukee School of Architecture and Urban Planning. The school was the first in the state to offer a program solely focused on architecture.

4. In 1976, the Milwaukee County Zoo welcomed a new addition to their family – a baby gorilla. The gorilla was named "Zuberi" and became a popular attraction at the zoo.

5. On January 5, 2015, Wisconsin Governor Scott Walker was inaugurated for his second term in office. Walker had previously served as governor since 2011 and was known for his controversial policies, including his attempts to limit collective bargaining rights for public employees.