Sacagawea really didn't assertively join the expedition. It was her husband Toussaint Charbonneau who was invited and hired by Lewis and Clark as an interpreter, and Sacagawea would at first only serve as a companion. However, her skills in interpretation proved superior to her husband's, and Lewis and Clark were impressed. She was also very calm and level-headed in many instances, whereas her husband would often panic so Lewis and Clark learned to trust her guidance more than his.
She became invaluable as a guide in the region of her birth, near the Three Forks of the Missouri, and as a interpreter between the expedition and her tribe when the expedition reached that area. After she gave birth during the expedition to Jean-Baptiste Charbonneau on February 11, 1805 she also quieted the fears of other Native Americans, for no war party traveled with a woman and a small baby.
Sacajawea helped lead Lewis and Clark on the expedition because she knew the land and was trying to help Luis and Clark. They also had a slave with them named York. York was there to help the travelers relationships with the Natives. He was also there to help them hunt. York was the only slave known that was allowed to carry a gun.
Of course Sacajawea helped explore on the Louis and Clark Expedition.
they found indians,with the help of sacajawea and crossed the missorui lake
Sacajawea helped lead Lewis and Clark on the expedition because she knew the land and was trying to help Luis and Clark. They also had a slave with them named York. York was there to help the travelers relationships with the Natives. He was also there to help them hunt. York was the only slave known that was allowed to carry a gun.
Clark arranged for the education of her son Jean-Baptiste's at the Saint Louis Academy boarding school
She was their guide. She also translated native languages and made them food for their expedition.
She built boats
Well, I know how Sacajawea became famous. It's because she led Lewis and Clark on their expedition. Sorry if that wasn't what you wanted to know.
Sacajawea was helpful in communicating with other tribes. As a guide she was more familiar with where and how they had to travel. It is hard to say that it would have been unsuccessful without her but the results might not have been the same.
Sacajawea helped with food on the Louis and Clark expedition. She found food (example she found the berries and roots) and kept them healthy. She also negotiated as she spoke multiple languages.
to help navigate?
after Sacajawea died clark got custody of her kids and rasised them like they where his own