http://blog.machinefinder.com/10925/picture-gallery-a-john-deere-tractor-pull-extravaganza

Tractor pulling is a tradition that originated in the 1860′s. It has now developed into a full-fledged sport practiced in the U.S., Canada, Australia, Brazil, and even Europe (particularly in the Netherlands). In essence, a tractor pull involves a sled, 35 ft. wide, being pulled a distance of 300 ft. As the tractor moves closer to its destination, more and more weight is added. While horses originally did the pulling, today competitors use a different (and exponentially more effective) kind of horsepower: tractors! Take a look through our picture gallery to see for yourself how far the tradition of tractor pulling has come over the years.

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