UNLIKE most other nonfoolish holidays，April Fool’s Day，or sometimes All Fool’s day，has a fairly（非常）foggy（模糊）history.

　　There is no“first April Fool’s Day”that can be pinpointed（查明）.Some believe it evolved in several cultures at the same time.The closest point in time that can be identified as the beginning of this tradition is 1582，in France.

　　Prior（在…之前）to that，the new year was celebrated for eight days，in the spring ，beginning on March 25 and ending on April 1.New Year’s Day was moved to January 1，when Charles Ⅸ of France introduced the Gregorian Calendar （阳历）in 1564.

　　However，communications being what they were in the days when news travelled by foot，many people did not receive the news for several years.

　　Others refused to accept the new calendar and continued to celebrate the new year on April 1.These“backward（落后的）folk（人民）”were labeled（贴上标签，称为）as“fools”by the populace（平民）。

　　This troublesome behaviour evolved over time into a tradition of prank-playing（恶作剧）on the first day of April.The tradition spread to England and Scotland in the 18th century.April Fool’s Day then developed into an international day of fun.