1. On December 10, 1863, Idaho Territory was officially established. This marked the first time that the region had been organized under a unified government.

2. In 1927, Idaho's Sun Valley ski resort officially opened to the public. The resort was the first in the United States to be built entirely for skiing, and helped to establish the sport as a popular recreational activity.

3. On December 10, 1972, the largest earthquake in Idaho's history struck the region. The quake, which measured 6.1 on the Richter scale, caused significant damage in the Challis region of the state and was felt as far away as Salt Lake City.

4. In 1985, Idaho Governor John Evans signed into law a bill that designated the huckleberry as Idaho's official state fruit. The huckleberry is a small, flavorful berry that grows wild throughout the state and is an important food source for wildlife and humans alike.

5. On December 10, 2007, Boise State University football coach Chris Petersen was named National Coach of the Year by the Associated Press. Petersen had led the Broncos to an undefeated season and a remarkable upset victory over heavily favored Oklahoma in the 2007 Fiesta Bowl.