1. Idaho Becomes a State: On September 2, 1890, Idaho officially became the 43rd state of the United States of America. It was previously a territory of the United States for 26 years.

2. Wildfire Outbreak: In September of 1910, several wildfires broke out across Idaho, Montana, and Washington. This became known as the Great Fire of 1910, which burned for two days and destroyed over 3 million acres of land.

3. A.J. Balukoff's Birthday: September 2 is also the birthday of businessman and politician A.J. Balukoff, who ran for the governor of Idaho in 2014 and 2018. He was unsuccessful both times.

4. Dworshak Dam Dedication: On September 2, 1973, the Dworshak Dam was dedicated in Orofino, Idaho. It is the third tallest dam in the United States and the tallest straight-axis concrete dam in the western hemisphere.

5. First Airplane Flight in Idaho: On September 2, 1910, Lincoln Beachey flew his biplane for the first time in Idaho. The flight took place at the Inter-State Fairgrounds in Boise and lasted for about 10 minutes. This was one of the earliest airplane flights in the state.