But do you guys know why today is the April Fools day?
It was because every year at this time, the weather always suddenly become cold or very hot. And they thought the weather is playing tricks on them. So they always play tricks on others.
And there are many versions of the origin of the April Fools Day.
A legend of England said that In 13th century, there was a trandition, the roads which the king have looked over, that road would belong to the country. And the people in Gotham didn't want to lose these roads, so they spreaded a rumour to stop king's perambulate. And when king knew that rumour, he dispatched a officer to inquire about that. When this officer got that town, he saw many lunatic people on the road. And he told the king about that, so the king didn't want to look over this town. And the people in Gotham are very happy about that. So the happy fools day is used to commemorate these clever people.