1. On April 3, 1820, the Michigan Territorial Legislature established the first post office in Detroit. The post office was located on Griswold Street and was a crucial hub for the distribution of mail and information throughout the region.

2. In 1851, the Michigan State Legislature passed a bill to fund the construction of a new state capitol building in Lansing. The new capitol replaced the previous one located in Detroit and helped to solidify Lansing's position as the state capital.

3. On April 3, 1905, the first automotive license plates were issued in Michigan. The plates consisted of a numeric code indicating the owner's district, followed by the letter "M" for Michigan. Today, Michigan's license plates are unique in that they feature the state's iconic Mackinac Bridge.

4. Michigan State University was founded on April 3, 1855, as the Agricultural College of the State of Michigan. The school was originally located in East Lansing and has since grown into a world-renowned institution with over 50,000 students.

5. On April 3, 1973, the Detroit Tigers opened their season at Tiger Stadium by defeating the Cleveland Indians 2-1. The game was notable for being the first live sporting event ever broadcast in color in the Detroit area. Tiger Stadium was a beloved fixture of the Detroit community for over 100 years and hosted many iconic moments in baseball history.