Why did the era of good feelings end?

The “Era of Good Feelings” began in 1815 in the mood of victory that swept the nation at the end of the War of 1812. Exaltation replaced the bitter political divisions between Federalists and Republicans, between northern and southern states, and between east-coast cities and settlers on the western frontier.

c. the king has significantly abused the colonists' rights many times over a long period of time.

darwinism is survival of the fittest there for social darwinism is the survival of the wealthiest