Insixteenth-centuryFrance,thestartofthenewyearwasobservedonAprilfirst.Itwascelebratedinmuchthesamewayasitistodaywithpartiesanddancingintothelatehoursofthenight.Thenin1562,PopeGregoryintroducedanewcalendarfortheChristianworld,andthenewyearfellonJanuaryfirst.Thereweresomepeople,however,whohadn'theardordidn'tbelievethechangeinthedate,sotheycontinuedtocelebrateNewYear'sDayonAprilfirst.OthersplayedtricksonthemandcalledthemAprilfools.InFrancetoday,AprilfirstiscalledPoissond'Avril.Frenchchildrenfooltheirfriendsbytapingapaperfishtotheirfriends'backs.Whentheyoungfooldiscoversthistrick,thepranksteryellsPoissond'Avril!16世纪的时候,法国人是在4月1号庆祝新年的。他们那时候过新年的方法和我们现在几乎一样,人们设宴、跳舞直到深夜。到了1562年,教皇格里高利颁布了基督教新历,按照新历,新年这一天改到了1月1号。但是,有些人没能听说或者听说了但不相信新年改天了。他们还是按照老习惯在4月1号这天过年。其他人就拿他们开玩笑,把他们叫做“愚人”。如今,法国人把愚人节叫做“上钩的鱼”。法国孩子会在朋友的背上贴一条鱼,以此来戏弄别人。当那个受骗上当的小朋友发现以后,开玩笑的人就大叫“上钩的鱼儿”!TodayAmericansplaysmalltricksonfriendsandstrangersalikeonthefirstofApril.OnecommontrickonAprilFool'sDay,orAllFool'sDay,ispointingdowntoafriend'sshoeandsaying,Yourshoelaceisuntied.Schoolchildrenmighttellaclassmatethatschoolhasbeencanceled.Whateverthetrick,iftheinnocentvictimfallsforthejokethepranksteryells,AprilFool!如今,每逢愚人节,不管对方是否相识,美国人都会开些小玩笑。在愚人节比较常见的把戏是指着别人的鞋子说:“你鞋带没系。”学生可能会骗同学说学校放假了。不管是什么样的招数,只要那个无辜的受害者中技了,恶作剧的人就会尖叫“愚人!”MostAprilFooljokesareingoodfunandnotmeanttoharmanyone.ThemostcleverAprilFooljokeistheonewhereeveryonelaughs,especiallythepersonuponwhomthejokeisplayed.AmericanhumoristMarkTwainhassaidthatthefirstofAprilisthedaywerememberwhatwearetheother364daysoftheyear.愚人节开的玩笑基本都是挺逗人的,没什么恶意。最高明的愚人节玩笑能让在场的每个人都捧腹大笑,即使是那个被作弄的人也会忍俊不禁。正如美国幽默作家马克吐温所说的,“只有在四月的第一天,我们才记起在过去一年的364天中我们是多么的愚蠢”。