Tractors

The first tractor sold by John Deere was the Waterloo Boy N, a tractor designed by the Waterloo Gasoline Engine Company, which was bought by John Deere. John Deere later went on to produce its first row crop tractor, the Model A, in 1934.
John Deere produced its first unstyled row crop tractor in 1929 to compete with the Farmall. In 1937 John Deere hired Henry Dreyfuss to restyle their tractors.
In 1949 John Deere released its first diesel tractor, the Model R. The Model R also included live PTO, live hydraulics, and was the most fuel efficient tractor at the time.
In 1961 John Deere flew all dealers to Dallas, Texas to reveal the newly styled tractors. The new models of tractors were the 1010, 2010, 3010, and 4010. These were followed by the 5010 in 1962, which was the first two wheel drive tractor to exceed 100 horsepower at the PTO and drawbar. The 5010 was designed for western wheatlands and never sold as a row crop tractor.
The 3010 and 4010 were replaced by the 3020 and 4020 in 1936, and the 5020 replaced the 5010 in 1965, becoming the most powerful two wheel drive tractor in the industry. By 1966 the 4020 made up 48% of all John Deere Tractor Sales.

In 1970 John Deere introduced the Generation II tractors, which included the optional Sound Guard body, which was the first tractor cab to dampen noise. It was seperated from the tractor by rubber bushings and insulated with foam to reduce noise. It also included standard heating and air conditioning, windsheild wipers, dome lights, red interior lights, and an optional AM/FM radio.

In 1994 the 8000 Series was released and brought revolutionary changes with them.
John Deere has released many new models with new features included in all models, with changes in naming systems and design.