The history of April fools Day, sometimes called All Fools Day is uncertain. There has not a exactly “first April Fools Day” on the calendar, but the current thinking is that it began around 1582 in France with the reform of the calendar under Charles IX. The French came to call April 1 Poisson d'Avril, or "April Fish." French children sometimes tape a picture of a fish on the back of their schoolmates, crying "Poisson d'Avril" when the prank is discovered. It's simply a fun little holiday, but a holiday on which one must remain forever vigilant, for he may be the next April Fool! Of course you can be the one make other the April Fool. Critical Seeker April Fool version is designed for the coming April Fools Day. It has many funny pictures that can help you make a goose of your friends. The game is easy to operate but hard to master. Want to see you friends terribly defeated on the All Fools Day? Critical Seeker provides you this chance.