During which war did the Declaration of Independence have to be hidden?

When an imperial power has political control, what is the territorial called

After the congress of vienna europe

Ineed an answer asap. which is not a reason for the “era of good feeling”? a) economy in the us was booming. b) the united states was victorious in the war of 1812. c) the united states outlawed slavery. d) the federalist party was disbanded and the united states had one political party.