A bit about Crop Circles

Although thought by many to be a phenomena of the 20th Century, crop circles and formations have been around for a very long time, and records even date back well before the invention of the camera.The most well known positive depiction of a crop circle is found in a woodcut made in 1678 with the title 'Strange News out of Hartford-shire’.The recorded incidence of crop circles in more modern times seems to have started in the early 20th century, with a gradual increase in numbers through to a marked incr4ease in the 1960’s, leading to a quite dramatic upturn in the 1990’s. There are many who are under the impression that crop circles are only indigenous to the U.K. Sure, they are more prevalent here than elsewhere in the world, but there are countless examples of them appearing all over the world - in the USA from 1920, in Europe from the mid 20th century and in Africa, Canada, Australia, Central & Southern America, Russia in 1970, and Japan in the late 70’s.
Source WorldMysteries