1. In 1935, the Iowa State Highway Patrol was established. This group of law enforcement officers was formed to reduce fatalities, prevent accidents, and enforce traffic laws throughout the state.

2. On March 25, 1955, the Iowa State Penitentiary experienced a major riot. Inmates broke out of their cells, set several fires, and took hostages. The situation was resolved after several hours of negotiations, and no casualties were reported.

3. In 1969, the town of Riverside, Iowa became the future birthplace of Captain James T. Kirk, the fictional character from the Star Trek franchise. The town has since become a popular tourist destination for fans of the series.

4. On March 25, 1984, the first Iowa Lottery drawing was held. The initial game was called "Scratch, Match, and Win" and tickets cost $1. The Iowa Lottery has since grown to include several different games, including Powerball and Mega Millions.

5. In 2013, Iowa governor Terry Branstad signed a bill allowing the creation of Iowa's first medical marijuana program. The program was established to provide relief to patients suffering from certain medical conditions, such as AIDS, cancer, and multiple sclerosis.