1.1582, King Charles IX of France decided to adopt a new reform of chronology - the Gregorian calendar (ie common Gregorian calendar) to a pair of New Year's Day of this reform is still under the old calendar to send New Year's ceremony on this day to celebrate New Year. Who advocates reform of the old school big plus ridicule these practices, send them fake gifts, inviting them to participate in a fake party. Since then, people will make fun of this day to spread. When people fall, when people would make fun of him shouted: "April fool" ("POISSON D'AVRIL"), meaning "April prank." The origin of this idiom of the original meaning is unclear.
1.1582年，法國國王查理九世決定采用新改革的紀年法——格里高利歷(即通用的陽歷)，以元旦為一 對這種改革，依然按照舊的歷法在這天送新年禮，慶祝新年。主張改革的人把守舊派這些做法大加嘲弄，給他們送假禮物，邀請他們參加假的聚會。從此，在這天捉弄人便流傳開來。當人上當受騙的時候，捉弄他的人會大聲叫：“四月之愚”(“POISSON D'AVRIL”)，意為“四月惡作劇”。這句成語的由來與原來之意義已不清楚。
Smart funny people in April gave them leave to send gifts, invite them to participate in sham conference has deceived the Tories called "April Fool" or "bait fish." Since then people have to fool each other on April 1, becoming popular custom in France. Early 18th century, the custom spread to England April Fool's Day, followed by Britain's early immigrants to the United States.
聰明滑稽的人在四月一日就給他們送假禮品，邀請他們參加假招待會.并把上當受騙的保守分子稱為“四月傻瓜”或“上鉤的魚”。 從此人們在4月1日便互相愚弄，成為法國流行的風俗。18世紀初，愚人節習俗傳到英國，接著又被英國的早期移民帶到了美國。
2 According to British historian of research: Origins "April Fools' Day was established out of the Indian Buddhist phrase" reach the other side, "the words. The Englishman encyclopedia which is recorded the: after "April Fool" is the fifteenth century AD religious revolution began to appear a liar festival. Then King Philip II of Spain had established an "Inquisition" as long as it is deemed not Catholic heresy, sentenced to death in April each year, which is the death penalty. Subjects felt terrible, so every day is fun to make fun of lying to dilute the rulers of fear and hatred. Then, follow the course of time, evolved into today's "April Fool's Day."
2.據英國歷史學家的考證：“愚人節”的起源乃是出于印度佛教那句“到達彼岸”的話。而英人百科全書里面則是記載著：“愚人節”乃是公元十五世紀宗教革命之后始出現的一個說謊節日。那時西班牙王腓力二世曾經建立一個“異端裁判所”，只要不是天主教徒就被視為異端，在每年四月一日處以極刑，也就是死刑。臣民們感到非常恐怖，于是每天以說謊取笑為樂，來沖淡對統治者之恐懼與憎恨。其后，沿用日久，演變為今日之“愚人節”。
3 According to legend, about one thousand six hundred and fifty years after the distance between the first man, Adam, God to flood to destroy the world, but leaving only the third son of Adam's descendants Mastermind Noah, a man of his preservation of a ship life size. After the flood instincts, he released a white dove of Noah, want to explore a piece of land after the flood subsided, because this day happens to be April 1. So later that in this day to do a meaningless things, like a dove made of white workers as stupid behavior, is the origin of "April Fool" is.
3.相傳距人類始祖亞當之后約一千六百五十年間，上帝以洪水來毀滅世界，但僅留下亞當的第三個兒子慧德的后代諾亞，他以一條人造的大船保全了一家大小的生命。洪水稍退之后，諾亞便放出一只白鴿，想探求一塊洪水消退之后的陸地，因為這一天正好是四月一日。所以后人認為，在這一天去做一種毫無意義的事，就好像一只白鴿做了白工一樣，行為愚蠢，為“愚人節”之起源。
4 According to Roman residual membership records: Rome was held in early April each year, "Ginger Man will be" a year "Ginger Man will", when women dominate the god of white snow Lisi race Ping Luo Na picking daffodils in a very paradise, Wang met Hades Bodhisattva Colorado, two fall in love, mutual affection, Bodhisattva, Colorado will marry white race Ping Luo Na as the queen of Hades, when the two of them returned to the government, the laughing Bodhisattva eat errands in Colorado are the ghosts issued Fuchu sound, in order to fool the snow Lisi, while snow Lisi fruit be fooled, she followed the sound sources are looking for. Therefore, they are an annual "Man Jiang will" to "April Fools."
4.據古羅馬殘籍記載：羅馬在每年四月初舉行“蔓姜會”，某年“蔓姜會”，主宰之神雪麗絲之女白洛賽蘋娜在極樂園采摘水仙花時，遇見冥府王菩拉多，兩人一見鐘情，互相示愛，菩拉多便娶白洛賽蘋娜為冥府王后，當他們兩個返回地府時，菩拉多乃差使地府中之鬼怪發出吃吃之笑聲，以愚弄雪麗絲，而雪麗絲果被愚弄，她乃循著聲音的來源尋覓。因此，他們便以每年之“蔓姜會”為“愚人節”。
5 According to Christian saying: "Fool's Day" is a day to commemorate Jesus' crucifixion, Jesus was crucified on the cross before, running around later forced to April 1 to commemorate this day he is innocent of such crucified man alive, in fact, contains a sense of vigilance.
5.根據基督教徒的說法是：“愚人節”是為了紀念耶穌受難的日子，耶穌被釘死在十字架之前，被迫到處奔走后人以四月一日這一天來紀念他此種無辜地被人活活釘死，其實含有警惕之意義。
6 April Fool's Day and the Roman festival of music play (Hilaria, 3 May 25) and India joyous festival (Holi, until March 31 ) there are similarities .
6.愚人節與古羅馬的嬉樂節(Hilaria，3月25日)和印度的歡悅節(Holi，到3月31日為止)有相似之處。
7 In the choice of timing , and the " vernal equinox " relevant , this time the weather often changes suddenly , like a fool human nature .
7.在時間的選擇，與“春分”有關，在這時間天氣常常突然變化，恰似是大自然在愚弄人類。
8 The UK has a folklore that April Fool's Day with the one called " Gotham " about town . Legend in the 13th century there is such a tradition , all the king inspected the road will be reverted to the public domain . Gotham 's citizens do not want to lose their trunk , so spread a rumor , hoping to prevent the king's tour. King then went to inquire about sending official news , news official after reaching towns and villages, streets were found Fengsha person. King gave up inspection plan. So he came by the April Fool's Day Memorial Gotham town people lie.
8.英國有一個民間傳說，認為愚人節與一個名叫“哥譚鎮”的城鎮有關。傳說在13世紀有這樣一個傳統，凡是國王巡視過的道路都會收歸公共所有。哥譚鎮的民眾不愿失去他們的主干道，于是散布了謠言，希望能夠阻止國王的巡視。國王遂派遣消息官前去打探，消息官到達村鎮之后，發現滿街都是瘋傻之人。國王便放棄了巡視的計劃。于是愚人節便由紀念哥譚鎮鎮民的謊言而來。
9 clown says professor emeritus of American humor at Boston University, USA Joseph - Persian historical origins of April Fool's gold to put forward their own views , he believes Fool's Day originated in a joke. In 1983, the Persian King once said that the concept of April Fool's from Rome clown three to four centuries AD Constantine I Roman period. It was said that clowns successfully petitioned the ruler , the ruler allows them to elect one member in a given day can become king. Thus, in April the same day , Constantine I the right to rule the Roman Empire to him a clown - Kuji Er king. Kuji Er then decreed that April 1 will never be as absurd day. Persian Jinjie Shao said at the time the agency did not have much interest in this topic. " I think I should have because of this bizarre story and praised by everyone ."
9.小丑說美國波士頓大學美國幽默學名譽教授約瑟夫-波斯金對愚人節的歷史起源提出了自己的見解，他認為愚人節起源于開玩笑。1983年，波斯金曾經表示，愚人節的概念來自公元三到四世紀羅馬君士坦丁一世時期的羅馬小丑。據說，當時小丑們向統治者請愿成功，統治者允許他們推舉一名成員在某一天中能夠成為國王。因此，在四月一日當天，君士坦丁一世將羅馬帝國的統治權交給了他的一個小丑--庫吉爾國王。庫吉爾隨即頒布法令，將四月一日永遠定為荒謬的一天。波斯金介紹說，當時的通訊社并沒有對這個話題有太大的興趣。“我認為我本應該因為這個離奇的故事而被大家稱贊。”