1. In 1863, President Abraham Lincoln signed a bill creating the Idaho Territory. This marked the official separation of Idaho from the larger Oregon Territory.

2. On October 18, 1907, the town of Stibnite, Idaho was founded. This small community was home to a large gold mine and was a hub for mining activity in the area.

3. In 1910, the first airplane flight in Idaho history took place on October 18th. Pilot C.H. Hamilton flew a Wright Model B biplane over the state capitol in Boise.

4. Farmer and inventor Chester Carlson was born on October 18, 1906 in Seattle, Washington. Carlson grew up in Boise, Idaho and later went on to invent the process for photocopying, which eventually led to the development of the Xerox machine.

5. Idaho's state bird, the mountain bluebird, was designated as the state bird on February 28, 1931. However, it wasn't until October 18, 1947 that the state legislature officially recognized the mountain bluebird as the official state bird of Idaho.