<span>In the late 1800s, people in many parts of the world decided to leave their homes and immigrate to the United States. Fleeing crop failure, land and job shortages, rising taxes, and famine, many came to the U. S. because it was perceived as the land of economic opportunity.
Hope This Helps Brainlest Please</span>
There is many reason, one way they could've been worried about is if the
new settlers would make war or take their land and food.
Another way is that they could've cause the Mexican to come of their land.
Hope it helped
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In 1883, it was the "railroad industry" that was responsible for creating the first system of time zones in the United States, since the introduction of rail travel meant that there needed to be a set table of departure and arrival times across the US.
When and where was it created
America as a whole became “paranoid”, and declared a “war on terrorism”
