1, 1582, the French king Charles IX decided to adopt a newly reformed calendar: Gregorian calendar (that is, the universal solar calendar), taking New Year's Day as the beginning of the new year, instead of taking April 1 day as the beginning of the new year. However, some old-school people oppose this reform and still celebrate the New Year by giving New Year gifts on this day according to the old calendar. Those who advocate reform laugh at these practices of the old school, give them fake gifts and invite them to fake parties. Since then, things that play tricks on people on this day have spread. When a person is deceived, the person who plays tricks on him will shout: "Poisson de Avril", which means "April prank". Smart and funny people gave them fake gifts on April 1 day, invited them to a fake reception, and called the deceived conservatives "April fools" or "hooked fish". From then on, people fooled each other on April 1 day, which became a popular custom in France. /kloc-At the beginning of the 8th century, the custom of April Fool's Day spread to Britain, and was later brought to the United States by early British immigrants.
2. According to the research of British historians, the origin of April Fool's Day comes from the word "reach the other side" in Indian Buddhism. In the British encyclopedia, it is recorded that "April Fool's Day" is a deceptive festival after the religious revolution in the15th century. At that time, King Philip II of Spain had established a "heresy tribunal", and anyone who was not a Catholic was regarded as heresy and was sentenced to death on April 1 day every year. The subjects were very afraid. They took pleasure in telling lies and making fun every day to dilute their fear and hatred of the rulers. Since then, it has been used for a long time and evolved into today's "April Fool's Day".
It is said that about 1650 years after Adam, the ancestor of mankind, God destroyed the world with a flood, leaving only Noah, the descendant of Adam's third son, Huide. He saved a family's life by building a ship with a man. After the flood subsided slightly, Noah released a white dove to explore a piece of land after the flood subsided, because it happened to be April 1 day. Therefore, future generations think that doing something meaningless on this day is just like a dove getting something for nothing, and its behavior is stupid. This is the origin of April Fool's Day.
According to Christians, April Fool's Day commemorates the day when Jesus was crucified. Before Jesus was crucified, he was forced to run around. Later generations commemorated his innocent suffering on April 1 day, which actually contained the significance of vigilance.