The Ford N-series tractor helped revolutionize modern mechanized agriculture with its three point hitch
A modern Ukrainian tractor XTZ-243K
This Hayes WHDX 70-170 6×6 ballast tractor is also a form of tractor, as are artillery tractors and the power units which pull semi-trucks
Agricultural tractors per 100 square kilometres of arable land[1]

A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanize agricultural tasks, especially (and originally) tillage, and now many more. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised.

  1. ^ "Tractors per 100 square kilometres of arable land". Our World in Data. Retrieved 7 March 2020.