Answer:
In the Transatlantic Slave Trade the majority of slaves got shipped to America for working on plantations for rich slave owners.
13th amendment ////////////
An example of a time when citizen's right to free speech can be restricted is when their speech impedes national security. For example, Freedom of Speech was greatly restricted during wars (such as WWII), when national security depended on people keeping quiet to not leak information to foreign spies. This was expanded on by the usage of propoganda, and was usually enforced by Civil Officers. Freedom of Speech however generally is not restricted, even when it hurts another group, as seen in <em>National Socialist Party of America v. Village of Skokie</em>, which, while the Justice sympathized with the people of Skokie, it ruled that freedom of speech cannot be denied to even hate groups.
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The Vietnam War. The USA became involved in Vietnam because it feared the spread of communism. The USA were unable to defeat the Vietcong and were met with growing opposition to the war back home.
The correct answer should be the train. Railroads were built and these helped people transfer goods and heavy things like machines all over the country. Railroads were key for everything in the 19th century.
