1. Fugitive Slave Act, 2. Gold mining, 7. Population growth led to sanitation are the only ones I know, sorry I couldn't help you more<span>
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Montesquieu is describing the "Separation Of Powers" which is important because it states that government should be split up into 3 branches the Legislative(which is Congress),The Executive(the President), and the Judicial(the Supreme Court). Montesquieu wanted this so that power could be divided equally and so that it wasn't just one big Government with all the power.
In 1910-1940s there was a resistance called the Harlem resistance. This caused the black population to migrate all over the U.S
