Lewis and Clark’s arsenal included 200 pounds of gunpowder and an experimental air rifle

This is one of the most interesting facts about Lewis and Clark expedition. One of the largest arsenals ever captured west of the Mississippi was aboard the Corps of Discovery. Along with a variety of rifles, muskets, tomahawks, and knives, it also contained more than 400 pounds of lead for the bullets and 200 pounds of gunpowder. To impress Indian tribes on the border, Lewis also acquired a cutting-edge pneumatic weapon. He could fire about 20 shots—each of them virtually silent—after injecting compressed air into the gun's stock. Despite being heavily equipped, the majority of the explorers never had to engage in actual combat. The lone exception occurred on the way back when Lewis and three of his soldiers fought the Blackfeet Indians in a gunfight that resulted in the deaths of two natives.

The journey was taken by more than 40 guys, each of whom had a job of his own. Guys were assigned different tasks along the journey, such as taking notes by some individuals and managing specific tasks by other men. The Corps of Discovery was their name.