Which of the following did not result from the War of 1812? A. The acquisition of land between the Appalachians and Mississippi River
B. A stimulus to American patriotic nationalism
C. The decreased popularity of the Federalist Party
D. The emergence of Andrew Jackson as an American hero

A.The acquisition of land between the Appalachians and Mississippi River

Explanation:

The war of 1812 occurred between the United States and Great Britain because the great Britain was violating the maritime rights that belonged to United States.

The acquisition of land between the Appalachians and Mississippi River Happened before 1812. Those lands already belonged to United States after the Louisiana Purchase in 1803.

the answer is a new goverment.

it increase by 12% a year from 1812-1820