In short, suppression and eradication.
The Protestants of the early United States tended to avoid marrying and continuing the bloodlines of Native Americans due to obvious racial tension and prejudice against them. Native Americans were eradicated on a larger scale in North America rather than South America, so there would be a greater amount of Natives there. (This is because of a more complex and somehow tolerant society in the South) However, there were obviously the mestizos. While there <em>was </em>reproduction between white people and natives, it was typically a result of harassment or an uncommon desire to start a family.
In summary, the amount of Native descendants in the United States is significantly lower now than centuries before because of endless eradication and little amounts of pure-blood Native Americans being born.
Answer:
The percentage of workers in agriculture is higher than the GDP percentage. This could be because industry and service workers contribute more to output on average.
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Nixon staffers began to spy on the opposition, including members of the Democratic Party.
Nixon's constant fear resulted in his staffers taking extreme actions to ensure he won. This including developing false rumors about different politicians and even breaking into the Democratic headquarters at the Watergate complex. This paranoia would eventually lead to his downfall, as members of the Committee to re-elect President Nixon were arrested for burglary after trying to steal documents from the Democratic Party.
Is it reliable, is it from the same time period of the event, is it written by or made by or the writer of the primary source has seen the event or has witnessed it or it is a autobiography.