Sacagawea

Sacagawea (or, sometimes, Sakakawea or Sacajawea) was a Lemhi Shoshone woman who was instrumental to the Lewis and Clark Expedition across what is now the western part of the USA. She traveled thousands of miles with the men, helping to make contact with local indigenous populations and providing valuable information about the natural history of the region.

Pronounced sak-uh-guh-WEE-uh.