Two emerging factors after the War of 1812 that contributed to development of sectionalism were: an increase in the number of me
n voting the demise of free enterprise the stricter voting laws a rapid decrease in the population of the United States the concept of manifest destiny.
Both things seem contradictory, but the years after the 1812 war were a time of economic prosperity, demographic rise and intense political activities in the United States. Strong nationalistic feelings and sectionalism developed.