1. In 1872, the Minnesota State Board of Health was established. This was one of the first state boards of health in the United States, and it played an important role in improving public health in Minnesota.

2. On April 18, 1906, a devastating tornado struck the town of Owatonna, Minnesota. The tornado killed six people and caused extensive damage to buildings and homes in the area.

3. The Minnesota Twins played their first game at the new Target Field stadium on April 18, 2010. The stadium, which has a seating capacity of 38,885, is known for its distinctive limestone exterior and sweeping views of downtown Minneapolis.

4. On April 18, 1942, the first B-17 bomber produced at the Northwest Airlines plant in St. Paul, Minnesota, took its maiden flight. During World War II, the plant manufactured more than 1,600 B-24 bombers for the U.S. military.

5. The Minnesota Historical Society was founded on April 18, 1849. The society is dedicated to preserving and sharing the history of Minnesota, and it operates several museums and historic sites throughout the state.