Question: What era was a well-known American fur trader and politician alive, who's mother was Jane Fisher, who married Joe Rolette, Sr, that lasted from the Louisiana Purchase in 1803 to Minnesota's achieving statehood in 1858?
Sentence (from "Joe Rolette"): Joseph Rolette (23 October 1820 – 16 May 1871) was a well-known American fur trader and politician during Minnesota's territorial era and the Civil War.
Relevant evidence: Yes