Have you ever heard about Louis and Clark and Sacagawea? Anywho after the territory was bought from France Jefferson, the president at the time, sent a group of men to explore the territory. They were led by Louis and Clark, they met an Indian tribe and an Indian woman helped them on their journey.
Yes, because it's an integer.
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Answer:
B
Explanation:
This is when the massive immigration influx from the 1880s-1930s started.