Only about two hundred Ponca remain when…
1804 CE
Shortly after that, the tribe The Ponca had been hit by a devastating smallpox epidemic shortly after 1789, when fur trader Juan Baptiste Munier had been given an exclusive license to trade with the Ponca at the mouth of the Niobrara River.
He had founded a trading post at its confluence with the Missouri, where he found about eight hundred Ponca residing.
The Poncas' number will rise to about seven hundred later in the nineteenth century.