1. In 1897, the City of Detroit experienced the worst fire in its history on May 7th. The blaze began in a hardware store and quickly spread due to high winds. By the time the fire was extinguished, 200 buildings and factories had been destroyed, leaving 5,000 people homeless.

2. On May 7, 1945, Michigan Governor Harry Kelly declared V-E Day, Victory in Europe Day, to be a legal holiday in the state. This was in celebration of the official end of World War II in Europe.

3. Michigan State University was established on May 7, 1855, as the Agricultural College of the State of Michigan. The original campus consisted of only three buildings, including a farmhouse that served as the school's first dormitory.

4. In 1915, the First Congregational Church in Kalamazoo, Michigan, unveiled a carillon that was one of the largest in the world at the time. The instrument consisted of 50 bells, with the largest weighing over 8,000 pounds, and could be heard up to 10 miles away.

5. The Mackinac Bridge, connecting Michigan's upper and lower peninsulas, opened on May 7, 1957, after several years of construction. The bridge spans five miles across the Straits of Mackinac and remains one of Michigan's most iconic landmarks.