Some historians believe the April Fools’ customs began in France, although no one knows for sure. It may stem from a calendar change in 16th century France — the moving ofthe New Year from April 1 to January 1 when the Gregorian calendar was adopted.
Those who chose to continue celebrating April 1st were called fools.
In France, April 1st is called “Poisson d’Avril.” French children tape paper fish to the backs of unsuspecting friends or foes and then yell out, “Poisson d’Avril!” Something fishy there.
In Scotland, April Fools’ lasts two days. Victims of pranks are called gowks (cuckoo birds). The second day is known as Taily Day, and bum jokes are the flavour..
In England they play a corker called BREXIT.