A crop circle (neologism) is a pattern made in a field of grain (usually wheat) bending ears in order to represent various geometric shapes. These forms can range from a simple circle of a few meters in diameter at the compositions of several hundred meters involving many sections.
The first known crop circles date from the late 1970s, and their creation was claimed later by two Englishmen, Doug Bower and Dave Chorley. They thereby affirmed their intention to make a joke, inspired by a hoax carried out in Australia in 1966.
Although some scientists and zetetician say that the origin of crop circles appeared in the English countryside is now known, various paranormal enthusiasts continue to cite many, many alternative explanations for the appearance of crop circles, as natural phenomena, events UFO or manifestations of energy.