This landmark artifact represents the first commercially successful farm tractor in the world powered by an internal-combustion engine. It was invented and built by Charles W. Hart and Charles H. Parr in Charles City, Iowa, as their Model 3, following two prototype versions.
Hart

YearAdded:
Image Credit: Courtesy Flickr/Norbert Schnitzler (CC BY-SA 2.0)Image Caption: Hart Parr TractorEra_date_from: 1903
1996