Answer: They were afraid that the English navy would have a blockade in the English Channel and decided to try and avoid it.
European settlement had overwhelmingly negative consequences for the Native Americans. Though Native American tribes did occasionally form positive relationships with European settlers, permanent European settlement in America eventually led to disease and displacement. Native Americans did not have immunity to European illnesses and their population was devastated by the (sometimes deliberate) introduction of diseases like for example smallpox. Over time, most surviving tribes were forcibly relocated from their traditional lands to make way for expanding European settlements.
millions of troops needing jobs
labor unions going on strike
another major economic depression
I believe it was their trading system that spread.
He was the leader of the Sioux who defeated Gen. Custer at Wounded Knee