April 1st is celebrated as Fool's Day and on this day, people play April Fools' Day pranks on each other. April Fools' Day, which falls on the first day of April is also known as All Fools' Day. The day was first celebrated in France after the European nation stopped using the Gregorian calendar. By doing this, France switched New Year's Day from Apr. 1 to Jan. 1, but many continued celebrating the new year on the first of April. Those who celebrated in April were considered to be "fools" and people would play tricks on them. In France, the day is called "Poisson d'Avril," which means "April fish". On this day, children tape paper fish to the backs of their friends and peers. When the victim discovers the prank, the prankster is supposed to yell "Poisson d'Avril!" Here are Top 10 April Fool prank ideas which you can try on fool your loved ones.