1. In 1835, the first land auction of Michigan Territory took place in Detroit. More than 1,000 lots were sold, raising a total of $331,000.

2. On June 30, 1854, the first passenger train arrived in Grand Rapids from Detroit. The journey took 6 hours and 40 minutes and the train was greeted by a large crowd of spectators.

3. The first automobile race in Michigan took place on June 30, 1894, in Grosse Pointe. The race was won by J. F. Collingwood, who drove his Benz car to victory over a 6-mile course.

4. In 1953, the Mackinac Bridge Authority was created to oversee the construction of the Mackinac Bridge. The authority was responsible for the financing, design, and construction of the bridge, which opened in 1957.

5. On June 30, 1965, the Detroit Tigers played their last game at Tiger Stadium before moving to their new stadium, Comerica Park. The Tigers defeated the Baltimore Orioles 2-1, with Denny McLain pitching a complete game.