Get facts and photos about the 43rd state.

Archaeologists recently made a huge discovery in Idaho: a blade-like tool made of rock. What’s the big deal? It turns out the blade is more than 13,500 years old, proving that people have lived in the area at least a few thousand years longer than experts previously thought. Thousands of years after the blade’s makers lived, other Native American tribes including the Nez Perce, Coeur d’Alene, Kootenai, Shoshone, Bannock, and Blackfeet lived on the land.