After the war of 1812, the United States experienced a surge of NATIONALISM, or love of country.
The victory in the War of 1812 had a high psychological impact for American society, in a positive way. It was a kind of "confirmation" of the independence obtained before the same rival, to which he had once again managed to win. Nationalism and patriotic sentiment were on the top during that time.
The end of the war marked the beginning of the Era of Good Feelings, which passed between the presidencies of Jefferson and Andrew Jackson, in which there was a great economic growth of the country.
The colonists had a problem with the Tea Act of 1773 because A. they saw it as the British government giving the East India Company a monopoly on the tea market in the colonies.
Therefore they organized the famous Boston Tea Party which prolonged the war.
Many people did not agree with slavery in some states, which caused tension in many areas.
Fort sumter im pretty sure (military base off of north carolina)
He started a war with the US and had his alliance with Britain