During the fur trade era, a pidgin form of Ojibwe known as Broken Oghibbeway was used as a trade language in the Wisconsin and Mississippi River valleys. Data on the language were collected during the 1820s at Prairie du Chien, Wisconsin by Edwin James, a physician and naturalist, who also gave the pidgin its name. It has been described as "…a language with a restricted vocabulary drawn from the Ottawa dialect of Ojibwe with a few words from the Fox language, another Algonquian language of the region, and restructured and reduced, but not absent, Ojibwe morphology."