April Fool's Day

April Fool's Day is the first day of April. On this day some people play jokes on their friends. It is celebrated in some countries in Europe such as UK, or in Canada, and the United States.

The  History: In the 16th century, France celebrated the New Year on April 1st, but  in 1562, Pope Gregory changed the calendar to the one we use today and from then on, the New Year began on January 1st. Lots of people didn't know about the new calendar, or they ignored the new calendar and kept celebrating on April 1st. 

Everyone else called them April fools and played tricks on them.