Who created the first diesel tractor?

The first diesel tractor was created by Charles Hart in 1908. He was a British engineer who, in partnership with the Hart-Parr Company (later known as Oliver), developed the Hart-Parr 30. This tractor featured a 40 horsepower diesel engine, which was revolutionary at the time.

Prior to the Hart-Parr 30, tractors were powered by gasoline engines, which were less efficient and required more maintenance. The Hart-Parr 30, with its diesel engine, proved to be a game-changer for the agricultural industry, paving the way for the use of diesel engines in tractors worldwide.