Question: The Oregon Trail is a 2009 iOS and DSiware version of a computer game that was designed to teach school children about the realities of pioneer life in what century?
Sentence (from "The Oregon Trail (video game)"): The Oregon Trail is a computer game originally developed by Don Rawitsch, Bill Heinemann, and Paul Dillenberger in 1971 and produced by the Minnesota Educational Computing Consortium (MECC) in 1974.
Relevant evidence: Yes