Here are 5 interesting facts about September 3 in Iowa history:

1. On September 3, 1832, the Sac and Fox tribes signed the Treaty of Fort Armstrong, ceding their lands in Iowa to the United States. The treaty allowed for the opening of millions of acres of land for settlement, which significantly changed the landscape and demographics of the state.

2. In 1916, William F. "Buffalo Bill" Cody made his last public appearance in Des Moines during a tour with his "Wild West" show. He was an American legend and one of the most famous showmen of his time, known for his skills as a buffalo hunter, army scout, and performer.

3. On September 3, 1950, the famous Iowa State Fair Parade was broadcasted on TV for the first time, captivating audiences across the country. The Iowa State Fair is one of the oldest and largest agricultural state fairs in the nation, attracting over one million visitors annually.

4. In 2018, the world's largest solar plant began operations in Dubuque, Iowa. The 2.3 million solar panels cover over 3,500 acres and can produce enough energy to power over 320,000 homes. The project was a significant achievement for Iowa's renewable energy industry and demonstrated the state's commitment to sustainability.

5. On September 3, 2019, the University of Iowa's football program unveiled a new state-of-the-art football facility called the "Football Operations Center." The $89 million facility includes a locker room, offices, exercise rooms, and a practice field that can simulate various weather conditions. The Football Operations Center was designed to provide the football team with everything they need to be successful on and off the field.