![]() ![]() The largest one percent of farms in the world are greater than 50 hectares and operate more than 70 percent of the world's farmland. Today, small farms produce about a third of the world's food, but large farms are prevalent. In the twentieth century, industrial agriculture based on large-scale monocultures came to dominate agricultural output. Plants were independently cultivated in at least 11 regions of the world. Sheep, goats, pigs and cattle were domesticated around 10,000 years ago. While humans started gathering grains at least 105,000 years ago, nascent farmers only began planting them around 11,500 years ago. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. Agriculture encompasses crop and livestock production, aquaculture, fisheries and forestry for food and non-food products.
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