1. On October 23, 1866, the Detroit Board of Education opened the first public high school in the city, known as the Detroit High School. It was later renamed as the Central High School and is now known as the Central Collegiate Academy.

2. In 1929, the first version of the Michigan State Police patrol cars was introduced on October 23. The cars were equipped with sirens, radio communications, and firearms to help the state police to handle criminal activities and emergencies on the highways.

3. The University of Michigan's football team played their first night game in Michigan Stadium on October 23, 1971. The game against the Iowa Hawkeyes drew more than 103,000 fans and ended in a 10-7 win for the Wolverines.

4. On October 23, 1989, the first section of the Detroit People Mover, a 2.9-mile automated transit system in downtown Detroit, was officially opened to the public. The system has since expanded to 13 stations and serves as a convenient mode of transportation for residents, workers, and visitors in the city.

5. In 2018, the Detroit Pistons played their first game at their new home, the Little Caesars Arena in Downtown Detroit, on October 23. The game against the Brooklyn Nets marked the beginning of a new era for the Pistons, who had previously played at the Palace of Auburn Hills for almost 30 years.