Ever heard of Sacajawea?

I suspect that most Americans have but that most readers of NightHawk haven’t. Certainly I hadn’t until today. This Indian woman was a character in a new family film that I saw this afternoon: “Night At The Museum” [my review here].
Apparently Sacajawea is well-known as the Shoshone woman who led President Thomas Jefferson’s secretary, Meriwether Lewis, and Lewis’ friend, William Clark, on their expedition of 1805 to find the Pacific Ocean. You can learn the facts here.