Ten Agricultural Inventions that Changed the Face of Farming in America

Let's Talk Rusty Iron: The inventions that stand out in the history of farming and farm machinery.

Counter-clockwise from top: The 1900 Hart-Parr tractor, courtesy Floyd County (Iowa) Historical Society; the Farmall tractor; the original Firestone chevron-tread tractor tire; an early Ford tractor with the Ferguson System.