The way we grow food crops and raise animals have changed radically over the past 300 years. The original inhabitants of central North America grew field crops like corn, and they also gathered wild rice, maple sap for sugar, and hunted a variety of animals. European settlers brought different farming styles, family structures, and material expectations linking agriculture ever more closely to distant markets and consumers. In the 20th century, machines replaced human and animal labor on the farm, making the farms of central North America among the most productive in the world, but also undermining rural communities.