1. On June 1, 1925, Davenport, Iowa experienced a devastating tornado that killed 16 people and injured over 350 others. The tornado, categorized as an F4 on the Fujita scale, caused widespread damage to buildings and homes in the city.

2. On June 1, 1931, the American Legion Post 46 was chartered in Cedar Falls, Iowa. The organization has been active in the community for over 90 years and provides support to veterans and their families.

3. Iowa became the first state in the nation to legalize riverboat gambling on June 1, 1989. The new law allowed licensed casinos to operate on riverboats that cruise the Mississippi and Missouri rivers.

4. On June 1, 2008, the town of Parkersburg, Iowa was hit by an EF5 tornado that killed nine people and destroyed over 200 homes. The town has since rebuilt and become a model for disaster recovery efforts.

5. On June 1, 2017, Iowa Governor Terry Branstad resigned his position to become the United States Ambassador to China. He was succeeded by Lieutenant Governor Kim Reynolds, who became the first female governor in Iowa's history.