April Fool's Day, also known as All Fool's Day, is celebrated annually on the first day of April.
It's a day when people play practical jokes on each other, share hoaxes and engage in general mischief.
The origins of April Fool's Day are unclear, but some historians believe it may have originated in France in the 16th century.
Before the introduction of the Gregorian calendar, New Year's Day was celebrated on April 1st.
When the calendar was changed to start the new year on January 1st, some people continued to celebrate the new year on April 1st and were mocked for doing so.
Another theory is that April Fool's Day dates back to ancient Rome, where a festival called Hilaria was celebrated at the end of March.
During this festival, people would play pranks on each other and wear disguises.
Regardless of its origins, April Fool's Day has become a popular holiday around the world.
In many countries, it's traditional to play pranks on friends and family members, often involving fake news stories, practical jokes, and hoaxes.
While some people view April Fool's Day as a harmless holiday, others argue that it can be hurtful and mean-spirited.