. . . . . "History" . "History"@en . . "Farm tractors"@en . . "The Fordson, The Farmall Regular. The John Deere Spoker D. These Tractors and many more, shaped the landscape of American farming, changing argriculture from a small operation powered by muscle and swet to big-acre spreads run by diesal and gas. Farm Tractors traces the evolution of these machines by prrofiling 36 models that changed the industry."@en . "Farm tractor milestones" . . . .