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Farming has always been hard work, inspiring a continuous development of labor-saving devices and engineering innovations. In the 1960s John Deere released the New Generation series of tractors. Thoughtfully designed and well built, they were vastly more powerful than the models they replaced. Because they enabled farmers to dramatically increase the amount of land worked in a day, they had a direct impact on farm size in the United States. One of the most popular tractors of all time, the John Deere 4020 tractor from that era continues in use on farms throughout America. Advances in agricultural engineering, one aspect of the Green Revolution that took place between WW II and the mid-1960s, led to the dramatic increase in food production worldwide. During the nearly 24 hours of daylight in Palmer, Alaska?s brief midsummer, farmers bale hay late into the night in a race against to get everything done before summer ends. The round-baler was a technological innovation that made it possible for one man to do a job that required a crew of people a generation ago.

