1. In 1862, the Battle of Lone Jack occurred in Missouri, which was an important event for Iowa history. Many Iowa soldiers fought on both sides of the battle, which ultimately resulted in a Confederate victory.

2. Iowa's Capitol building was dedicated on August 12, 1884. The building is a notable landmark in Des Moines and has a distinctive dome that can be seen from miles away.

3. On August 12, 1976, the University of Iowa's Old Capitol was declared a National Historic Landmark. The building was the original capitol of Iowa and served as the administrative center for the University of Iowa for many years.

4. The first practical electronic computer was built in Ames, Iowa in 1940 by John Vincent Atanasoff and Clifford Berry. Their invention, the Atanasoff-Berry Computer, paved the way for modern computing technology.

5. The Iowa State Fair, one of the largest state fairs in the country, typically begins on or around August 12 each year. The fair is known for its food, entertainment, and exhibits showcasing Iowa's agricultural heritage.