Answer:
During the 19th century, the ideas of liberty and rights were spreading like rapid fire. After America, received its independence, many countries were inspired to overthrow their monarchies. The French Revolution followed after as well. These ideas of nationalism and pride for one's country definitely motivated the people to be able to have liberty in their own country.
Explanation:
Each of these events and actions dealt with the extension of slavery into the western territories. The Missouri Compromise (1820) banned slavery 36 degrees latitude. The Compromise of 1850 allowed for popular sovereignty (voters decide) in the Mexican Cession territory.
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States had emerged as an uncontested authority in Europe.