1. On October 10, 1901, the Idaho State Board of Health was established. This board was responsible for ensuring the health and well-being of Idaho's residents by regulating everything from vaccinations to the cleanliness of public facilities.

2. In 1911, Idaho Governor James H. Hawley signed the state's first-ever workmen's compensation law on October 10. This law provided financial protection for employees who were injured on the job, ensuring they would receive compensation for medical expenses and lost wages.

3. In 1935, the City of Boise celebrated the grand opening of the new Boise Municipal Airport on October 10. This airport, which replaced the previous municipal airfield, was a significant milestone in the development of air travel in Idaho.

4. On October 10, 1949, Idaho Governor C.A. Robb declared a state of emergency due to a record-breaking cold snap. Temperatures across the state dropped to well below freezing, causing widespread damage and posing a significant risk to public health and safety.

5. In 1978, the Teton Dam in eastern Idaho famously collapsed on June 5, causing massive flooding and damage throughout the region. However, it was on October 10 of that year that the federal government finally agreed to provide financial assistance for the recovery efforts, which were estimated to cost billions of dollars.