April Fools' Day, also known as All Fools' Day, is a yearly tradition observed on 1 April that involves the enactment of practical jokes and hoaxes. Those playing pranks typically reveal their actions by exclaiming "April Fools!" to the unsuspecting recipient. Mass media often participate in these playful deceptions, with some pranks being exposed as such on the subsequent day. The historical practice of dedicating a day to lighthearted pranks on neighbors has been a recurring custom worldwide.