First settled in 1814, Palmyra was originally the site of a ferry across the Wabash River.
The peak population of the settlement was claimed to be between 500 and 600, though it is likely that these numbers are exaggerated.
Epidemics of malaria and yellow fever killed a large portion of the settlement.
By 1821, it was clear that the county seat had to be moved to a more stable town.
You can help Wikipedia by expanding it.This Wabash County, Illinois location article is a stub.