1. In 1855, the University of Michigan in Ann Arbor opened its first medical school building, the South Building. The building was designed by Alexander Jackson Davis and still stands on the university's campus today.

2. On February 13, 1936, boxer Joe Louis defeated Tony Rosa in a heavyweight boxing match at Olympia Stadium in Detroit. Louis went on to become one of the most celebrated boxers in history, winning 66 out of his 71 professional fights.

3. In 1967, the Detroit Tigers signed pitcher Denny McLain to a record-breaking contract of $80,000. McLain went on to win 31 games that season, becoming the first pitcher since 1934 to reach that milestone.

4. On February 13, 1977, the Michigan State Spartans men's basketball team defeated the Indiana Hoosiers 95-64, setting a record for the largest margin of victory over a top-ranked team in NCAA history.

5. In 2014, on February 13th, a winter storm brought heavy snowfall and freezing temperatures to the state of Michigan, causing widespread power outages and travel disruptions. The storm, which was dubbed "Winter Storm Pax," resulted in the closure of schools and businesses throughout the state.