Answer:
Sacagawea
Explanation:
The Fort Mandan refers to the name of the encampment which the Lewis and Clark Expedition built for wintering over in 1804-1805. It was located on the Missouri River and about twelve miles from the location of present day Washburn, North Dakota.
Sakagawea was the name of the person which was hired as a guide and interpreter when they reached Fort Mandan. She was 17-year-old and wife of Toussaint Charbonneau, a French Canadian trader hired by Lewis and Clark as a Hidatsa interpreter. She proved to be an invaluable member of the expedition.
I believe it was called the domino theory
<span>.</span><span>to be with people they knew
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Our President name is Barack Obama
