On April 1st, many countries celebrate April Fools' Day. Sometimes referred to as All Fools' Day, it is
not a nationalholiday but a widely recognized day when
people play practical jokes and hoaxes on each other. It’s
believed that April Fool’s Day began with the reform of the calendar.
In 1582, Pope Gregory XIII ordered the advancement of the calendar by 10 days and introduced a new corrective device to curb further error: century years such as 1700 or 1800 would no longer be counted as leap...
Published on April 01, 2013 08:23