Learn about the mystery of crop circles with iMinds insightful audio knowledge series.Crop circles are geometric patterns found in agricultural fields, most often in Southern England. They consist of flattened plant stems lying in regular patterns, some of which are highly complex. Crop circles usually appear in fields of wheat, barley, canola and other common crops. Circles have also been known to appear in grass, sand, and ice. Because of their size - hundreds of feet across - crop circles can only be truly appreciated from the air. There are at least 10,000 reported instances of crop circles to date.

Evidence of crop circles dates back to a 17th century English pamphlet called the “Mowing Devil”. It describes how a farmer, frustrated with the exorbitant wages his labourers were charging, declares that he would rather have “the devil himself” harvest his crop of oats. That night, strange lights appeared in his field, and in the morning a circular pattern was found.

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