With April Fools' Day approaching, there's no better time than now to start planning out elaborate pranks. For example, if you know anyone with a rear view camera on their car, simply place a plastic toy dinosaur in the parked position and wait for their reaction - make sure you also have a camera ready. The earliest recorded association between 1 April and foolishness is an ambiguous reference in Chaucer's Canterbury Tales (1392). Many writers suggest that the restoration of 1 January by Pope Gregory XIII as New Year's Day of the Gregorian Calendar in the 16th century was responsible for the creation of the holiday, sometimes questioned for earlier references. Continue reading for more.