Nationalism in the United States

Nationalism in the United States was not particularly widespread in the colonial era. The first attempt at 'union' was the "Albany Plan," which proposed a union in 1754. Despite being unsuccessful, it set the structure for future efforts. It was not until the War of 1812 that people of the United States began to feel as if part of a single body/country.

Colonial Era
Not really

The American Revolution was a minority movement. During the American Revolution, both loyalists and patriots made up the minority of those living in the colonies. Into the revolution, out of all those who were involved in the war, the percentages of Rebels and Tories (loyal to the empire) were half-and-half(?)

Rebels made it their duty to rouse the common population into rebellion. When the redcoats left an area, rebels swarmed in to teach political education and support a revolution.

Articles of Confederation
This forgotten, provisional government was the first step towards union, crudely assembled and ratified by the 13 colonies just after the American Revolution.

War of 1812
Many Americans regarded (or regard...maybe) the War of 1812 to be the "second war of independence." Despite no territorial gains, there were no territorial losses, which, in their eyes, was a huge success, being against the British Empire. By 'winning' this war, the stronger feeling of independence caused nationalism to flourish beyond its cramped state.

Pre-Civil War
ah, slaves. let me keep my slaves or we're breaking up

Post-Civil War
ah, slav- I mean, tenant farmers.