The Era of Good Feelings marked a period in the political history of the United States that reflected a sense of national purpose and a desire for unity among Americans in the aftermath of the War of 1812. This is a period is that is closely associated with James Monroe's presidency (1817–1825).

The Era of Good Feelings was filled with National Pride. The British government for the UK had been forced to recognize the United States as an expanding national power. The U.S. had grown confident of the impact that its new, expanding role as a nation could have on the world stage. The Second Barbary War of 1815 (The Algerine War) had ended in victory for the Americans. Songs like the 'Star Spangled Banner' became popular, and Americans really began to believe that the USA was "the land of the free and the home of the brave". Opportunities for America and its people seemed endless. The country in the eyes of the world seems to have boundless lands and riches.

More Info: en.wikipedia.org