April Fools’ Day
April Fools’ Day, sometimes called All Fools’ Day, is one of the most light-hearted days of the year. Its origins are uncertain. Some see it as a celebration related to the turn of the seasons, while others believe it stems from the adoption of a new calendar.
The earliest recorded association between April 1 and foolishness is an ambiguous reference in Chaucer’s Canterbury Tales (1392). Many writers suggest that the restoration of January 1 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.