A tractor is a heavy-duty utility vehicle commonly employed for
agricultural use. One may find tractors all over the world, from a grain field in
Russia to a golf course in
Tennessee, and from a scrapyard in
Austrailia to an archeological site in
England.
Common features of tractors include a high-
torque engine (most frequently diesel powered), oversized rear tires for outstanding traction, and a
PTO shaft linked directly to the engine to power attachments such as
hay bailers or
mowers.
The first tractors were introduced in 1868 and utilized steam for power. Manufacturers such as
John Deere and
Massey Ferguson have made the tractor what it is today, a versatile and powerful implement of farmers as well as many others who may use them for more specialized purposes.