We’ve researched the entire history of April Fool’s Day and selected its top 100 hoaxes ever, as judged by creativity, historical significance, the number of people duped, and notoriety. The first version of this list was created in the late 1990s. Over the years it’s been revised a number of times, based upon reader feedback and ongoing research. The most recent major revision occurred in March 2015.
April 1, 2000: The Independent reported that Florida researchers had developed a Viagra-like pill to treat sexually frustrated pets, including hamsters. Veterinarians were said to have greeted the news with derision, but the article pointed out that there are few things as sad as a pet suffering from feelings of sexual inadequacy, noting, “It’s not unknown for a guinea pig to sit in its cage thinking, ‘I haven’t had sex for months. Am I so unattractive?'” Owners were instructed to simply grind the pills up and sprinkle them in the pet’s food. Laying some newspaper down on the floor once the pills began to take effect was also advised. The pills were to be marketed under the brand name Feralmone.
April 1, 2014: The renowned King’s College Choir is not known for farce. This made it noteworthy when they released a video announcing that complex regulations had made it impractical to continue featuring young boys in the choir, and that they had been forced to find other ways to replicate the high pitch of the boys’ preadolescent voices. Because the older choral scholars had vetoed the “surgical solution,” the choir leaders had finally adopted a suggestion made by a colleague in the Chemistry Department — use helium. The video, demonstrating the use of helium during a performance, generated almost 1 million views on YouTube.