It is
believed that the tradition of celebrating April fools' day began
approximately in the mid sixteenth century when France (upon the directive of
Pope Gregory XIII) abandoned the Julian calendar in favor of the Gregorian
calendar. Use of this new calendar meant that the new year would now begin on
the first day of January as opposed to the first day of April. Those who did
not catch this news in time went on celebrating the beginning of the new year
on April 1st and as such they were ridiculed
and made the laughing stock on this account. These people would
henceforth be referred to as 'April fools'.
