"Many different countries around the world celebrate a day of jokes or tricks around the first of April. Although each separate holiday's background is unique and often humorous, one of the most bizarre April 1 traditions is celebrated in Italy, France, Belgium, and Frecnh-speaking Canada. In these countries it is common to tack a paper fish on a friend's back and shout "April fish!" in the local language.
So Pesce d'Aprile, Poisson d'Avril, Aprilvis, and April Fools to you!"