tractors By 25430 1837 STEEL WALKING PLOW John Deere introduces 1863 RIDING CULTIVATORS ARE INTRODUCED. 1863 1892 FIRST GASOLINE-POWERED TRACTOR INVENTED. 1892 FIRST GASOLINE-POWERED TRACTOR INVENTED. 1901 FIRST COMMERCIALLY SUCCESSFUL GAS-POWERED GENERAL PURPOSE TRACTOR. 1904 POWER TAKE-OFF (PTO) SHAFT APPEARED. 1917 FORD INTRODUCES THE MASS-PRODUCED TRACTOR. 1925 HARRY FERGUSON INVENTS THE THREE-POINT HITCH. 1935 RUBBER TIRES INCLUDED AS STANDARD EQUIPMENT 1954 TRACTORS ON FARMS EXCEEDS THE NUMBER HORSES AND MULES. 1959 EXPERIMENTING IN AUTOMATION. 1994 FARMERS BEGIN USING GPS. 2000 TECHNOLOGICAL INNOVATION AT AN ALL-TIME HIGH.
