April Fools' Day is celebrated in different countries around the world onApril 1 every year. Sometimes referred to asAll Fools' Day, April 1 is not anational holiday, but is widely recognized and celebrated as a day when many people play all kinds ofjokes and foolishness. The day is marked by the commission of good-humoured or otherwise funny jokes,hoaxes, and other practical jokes of varying sophistication on friends, family members, teachers, neighbors, work associates, etc.

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• Today, we're here to share an important decision.
  
  Our community members have always struggled with English spelling, particularly words spelled with the letterq. So, we will be removing the letterq from the Cambridge Dictionary.
  
  words currently spelled withqu will be spelled withk orkw instead - for example, kwiet, ekwipment, and antike.
  
  Click the link in the first comment to learn why.
  • (See the first comment:[1])
    • Cambridge Dictionary,Facebook post on April Fools' Day, April 1, 2025.

• When you want to fool the world, tell thetruth.
  • Otto von Bismarck (born 1 April 1815), as quoted inAmerican Speaker : Your Guide to Successful Speaking (1992) by Aram Bakshian.

• The first of April, some do say
  Is set apart for All Fools' Day;
  But why the people call it so,
  Nor I, nor they themselves, do know.
  • Poor Robin's Almanac (1760), "All Fools' Day".

• Dzień pierwszy kwietnia, tak zwanyprima aprilis (prima znaczy po łacinie dzień,aprilis — bzdura), jest jedynym dniem w całym roku, kiedy pędzące ku wiośnie żywioły, myśli, słowa i zmysły obchodzą szalony, obłąkany karnawał i korzystając z tradycyjnego przywileju puszczają się na kosmiczne żarty, międzyplanetarne awantury, niespodzianki rozpętanego chaosu i tryumfującą bzdurą zadają na każdym kroku kłam ustalonemu porządkowi rzeczy!
  • Translation: The first day of April, also known asPrima Aprilis (from Latinprima, day;aprilis, humbug), is the only day of the year when elements, thoughts, words, and senses, all rushing towards springtime, observe a crazy, mad carnival and thanks to a traditional privilege abandon themselves tocosmic pranks, interplanetary riot, surprises of unleashed chaos, when at every step triumphant drivel flies in the face of the usual order of things!
  • Antoni Słonimski andJulian Tuwim, inW oparach absurdu [In the Fumes of Absurd] (in Polish), 1958.

• The first of April is the day we remember what we are the other 364 days of the year.
  • Mark Twain, as quoted inQuick and Fun Activities for Every Day of the Year (2001) by Tim Tuck and Karen Froloff, p. 1.

• Encyclopedic article onApril Fools' Day on Wikipedia
• Media related toApril Fools' Day on Wikimedia Commons
• Works related toPortal:April Fools' Day on Wikisource
• The dictionary definition ofApril Fools' Day on Wiktionary
• Snopes - Origins of April Fool's Day

• Holidays and observances