April Fools' Day is celebrated every year on 1st April by playing practical jokes and spreading hoaxes. News organisations and social media often report fake stories which are usually explained later. The BBC's Spaghetti-tree hoax of 1957 is still the most famous. The custom of setting aside a day for the playing of harmless pranks may originate from the Romans. In old England, Chaucer's Canterbury Tale of 1392, the Nun's Priest's Tale, the vain cock Chauntecleer is tricked by a fox on the day that later became April Fools' Day.