April Fool's Day is on April the first, a day when people play tricks on others, especially by telling them something that is not true. Its exact origin is uncertain, but the possible origin may be from France. In France, the celebration of the new year used to begin on March 25th and finish on April 1st. In 1582, a new calendar was introduced (the Gregorian Calendar), and New Year's Day was changed to January 1st. For many years, however, many people still celebrated New Year's Day on April 1st instead of on January 1st. They did not know about the new calendar, so they were called "fools" by the people who followed the new modern calendar.

愚人節(jié)是4月1日，在這一天人們可以捉弄別人，通常是說一些假話來制造惡作劇。愚人節(jié)的具體來源很不確定，但是可能來自于法國。在法國，過去人們在3月25日開始慶祝新年，一直持續(xù)到4月1日。1582年法國開始采用了新的日歷(格雷果里歷)，新年的日期也就改到了每年的1月1日。但是后來的很多年，由于有很多人不知道已經(jīng)改用了新的日歷，仍然在4月1日慶祝新年。這些人因此常常被叫做“傻瓜”。