Why April 1st Is Celebrated As April Fool’s Day And Prank Others Fool? History Behind April Fool’s Day

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April Fools’ Day is celebrated every year on April st. People make fool their friends, family members and dear ones by playing practical jokes and spreading hoaxes.

People enjoy a lot of making others fool. The jokes and their victims are called April fools. People playing April Fool jokes expose their prank by shouting April Fool.

Sometimes April Fool’s Day is also called as All Fools Day.

Although popular since the 19th century, the day is not a public holiday in any country.

Why this day is celebrated as April Fool’s Day?

There are numerous explanations as to the origin of this day; here are the most popular ones.

Calendar switch that happened in Europe around 1500s.

This is the most common theory behind of April’s Fool Day. In 1582, Pope Gregory XIII decided to switch calendars, from the Julian to Gregorian calendar. According to the Julian one, New Year’s Day fell on April 1 but the Gregorian one had it on January 1. People who were slow to realise this change and continued to celebrate New Year’s Day on April 1 were made fun of. They were called Poisson d’Avril (April Fish) and paper fish were stuck to their backs without their knowledge.


Festival of Hilaria, an ancient Roman celebration for the resurrection of the god Attis.

The word Hilaria resembles the word hilarity in english, meaning extreme amusement. Also, the modern equivalent of Hilaria is called Roman Laughing Day.


Association between April 1 and devious trickery in one of the Canterbury Tales (1392), The Nun’s Priest’s Tale.

It’s a story of a fox who tricks a rooster into becoming his meal, but then he himself is tricked by the rooster into letting him go. The opening lines of the story mention ‘Syn March began thirty days and two’, which is misunderstood to mean April 1.


The ceremony of washing the lions is believed to be the first recurring April Fools’ Day prank ever recorded.

In 1686, British philosopher John Aubrey referred to April 1 as “Fooles Holy Day.” Later in 1698, people started tricking others into visiting the Tower of London to see the lions washed.


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