What was one historical event that happend in Idaho?

The Lewis and Clark Expedition of 1805-1806 was one of the most significant historical events in Idaho. Meriwether Lewis and William Clark led a team of explorers west across the United States, and they were the first non-Native Americans to document their journey through what is now Idaho.

They passed through the Lemhi Valley in central Idaho, and they left behind inscriptions that can still be seen today. Their expedition was a major step in the exploration and settlement of the American West, and it helped to open up the region to future settlers and explorers.