When the French gave up their North American territories, the Americans no longer needed the protection of British troops. www.yahooanswers.com
That slaves would take its jobs at lower wages is people in border states.
The scientist who thought that the earth was the center of the universe was Nicolas Copernicus
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The population of California grew significantly, largely due to servicemen who were stationed at the new military bases/training facilities and mass influx of workers from around the U.S. in the growing defense industries. ... Over 500,000 people moved to California from other states to work in the growing economy.