The Top 100 April Fool's Day Hoaxes of All Time

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.

Other April Fool resources at the Museum include: the April Fool Archive (a year-by-year archive of the entire history of the celebration), the Origin of April Fool's Day, the April Fool FAQ, and the Top 10 Worst April Fools Ever. Also, you can find more info about most of the hoaxes in the Top 100 list by clicking their title or thumbnail.
The Top 100:   10-1 | 11-20 | 21-30 | 31-40 | 41-50 | 51-60 | 61-70 | 71-80 | 81-90 | 91-100

#6: Planetary Alignment Decreases Gravity

April 1, 1976: During an early-morning interview on BBC Radio 2, the British astronomer Patrick Moore announced that at 9:47 AM that day a once-in-a-lifetime astronomical event was going to occur. Pluto would pass behind Jupiter, and this planetary alignment would temporarily counteract and lessen the Earth's own gravity. Moore told his listeners that if they jumped in the air at the exact moment the alignment occurred, they would experience a strange floating sensation. When 9:47 AM arrived, the station began receiving hundreds of phone calls from listeners claiming to have felt the sensation. One woman reported that she and her friends had risen from their chairs and floated around the room. Moore had intended his annoucement to be a spoof of a pseudoscientific theory that had recently been promoted in a book called The Jupiter Effect, alleging that a rare alignment of the planets was going to cause massive earthquakes and the destruction of Los Angeles in 1982. More...

#7: The Taco Liberty Bell

April 1, 1996: The Taco Bell Corporation took out a full-page ad that appeared in six major newspapers announcing it had bought the Liberty Bell and was renaming it the Taco Liberty Bell. Hundreds of outraged citizens called the National Historic Park in Philadelphia where the bell was housed to express their anger. Their nerves were only calmed when Taco Bell revealed, a few hours later, that it was all a practical joke. The best line of the day came when White House press secretary Mike McCurry was asked about the sale. Thinking on his feet, he responded that the Lincoln Memorial had also been sold. It would now be known, he said, as the Ford Lincoln Mercury Memorial. More...

#8: UFO Lands in London

March 31, 1989: Thousands of motorists driving on the highway outside London looked up in the air to see a glowing flying saucer descending on their city. Many of them pulled to the side of the road to watch the bizarre craft float through the air. The saucer finally landed in a field on the outskirts of London where local residents immediately called the police to warn them of an alien invasion. Soon the police arrived on the scene, and one brave officer approached the craft with his truncheon extended before him. When a door in the craft popped open, and a small, silver-suited figure emerged, the policeman ran in the opposite direction. The saucer turned out to be a hot-air balloon that had been specially built to look like a UFO by Richard Branson, the 36-year-old chairman of Virgin Records. The stunt combined his passion for ballooning with his love of pranks. His plan was to land the craft in London's Hyde Park on April 1. Unfortunately, the wind blew him off course, and he was forced to land a day early in the wrong location. More...

#9: Sidd Finch

The April 1985 issue of Sports Illustrated revealed that the New York Mets had recruited a rookie pitcher named Sidd Finch who could throw a baseball at 168 mph — 65 mph faster than the previous record. Surprisingly, Sidd Finch had never played baseball before, but he had mastered the "art of the pitch" in a Tibetan monastery. Mets fans couldn't believe their good luck and, accepting at face value the peculiarities of Sidd Finch's past, flooded Sports Illustrated with requests for more information. But in reality this amazing player only existed in the imagination of author George Plimpton, who had left a clue in the sub-heading of the article: "He's a pitcher, part yogi and part recluse. Impressively liberated from our opulent life-style, Sidd's deciding about yoga —and his future in baseball." The first letter of each of these words, taken together, spelled "H-a-p-p-y A-p-r-i-l F-o-o-l-s D-a-y — A-h F-i-b". More...

#10: Nixon for President

April 1, 1992: National Public Radio's Talk of the Nation revealed that Richard Nixon, in a surprise move, was running for President again. His new campaign slogan was, "I didn't do anything wrong, and I won't do it again." Accompanying this announcement were audio clips of Nixon delivering his candidacy speech. Listeners responded viscerally to the announcement, flooding the show with calls expressing shock and outrage. Only during the second half of the show did the host John Hockenberry reveal that the announcement was a practical joke. Nixon's voice was impersonated by comedian Rich Little. More...

#11: Alabama Changes the Value of Pi

The April 1998 issue of the New Mexicans for Science and Reason newsletter contained an article claiming that the Alabama state legislature had voted to change the value of the mathematical constant pi from 3.14159 to the 'Biblical value' of 3.0. Soon the article made its way onto the internet, and then it rapidly spread around the world, forwarded by email. It only became apparent how far the article had spread when the Alabama legislature began receiving hundreds of calls from people protesting the legislation. The original article, which was intended as a parody of legislative attempts to circumscribe the teaching of evolution, was written by physicist Mark Boslough.

#12: Man Flies By Own Lung Power

In April 1934, many American newspapers (including The New York Times) printed a photograph of a man flying through the air by means of a device powered only by the breath from his lungs. Accompanying articles excitedly described this miraculous new invention. The man, identified as German pilot Erich Kocher, blew into a box on his chest. This activated rotors that created a powerful suction effect, lifting him aloft. Skis on his feet served as landing gear, and a tail fin allowed him to steer. What the American papers didn't realize was that the "lung-power motor" was a joke. The photo had first appeared in the April Fool's Day edition of the Berliner Illustrirte Zeitung. It made its way to America thanks to Hearst's International News Photo agency which not only fell for the hoax but also distributed it to all its U.S. subscribers. In the original article, the pilot's name was spelled "Erich Koycher," which was a pun on the German word "keuchen," meaning to puff or wheeze.

#13: The Body of Nessie Found

April 1, 1972: Newspapers around the world reported the sensational news that the dead body of the Loch Ness Monster had been found. A team of zoologists from Yorkshire's Flamingo Park Zoo had come across it while working at the Loch. The researchers tried to take the Nessie corpse back to Yorkshire, but Scottish police promptly stopped them, citing an old law that made it illegal to remove "unidentified creatures" from Loch Ness. However, subsequent examination of the creature determined that it wasn't actually Nessie. Instead, it was a large bull elephant seal from the South Atlantic. But how had it gotten to Loch Ness? This was revealed the next day when the Flamingo Park's education officer, John Shields, confessed responsibility. The seal had died the week before at Dudley Zoo. He had shaved off its whiskers, padded its cheeks with stones, and kept it frozen for a week, before surreptitiously dumping it in the Loch, intending to play an April Fool's prank on his colleagues. He admitted the joke got somewhat out of hand when the police became involved.

#14: The Norwegian Wine Surplus

April 1, 1950: Aftenposten, Norway's largest newspaper, announced on its front page that the government-owned Wine Monopoly (Vinmonopolet) had received a large shipment of wine in barrels, but it had run out of bottles. To get rid of the extra wine, the stores were running a one-day bargain sale, offering wine at 75% off and tax-free. The catch was that buyers had to bring their own containers to put the wine in. "Buckets, pitchers, and the like" were recommended. When the Vinmonopolets opened at 10 a.m., Norwegian wine lovers rushed to line up, forming long queues that stretched around the block. According to legend, numerous empty buckets were later seen lying in the streets, left there by people who had realized, while standing in line, that the sale was a hoax.

#15: The Washing of the Lions

April 1, 1698: As reported in Dawks’s News-Letter the following day, "several persons were sent to the Tower Ditch to see the Lions washed." This is the earliest known record of an April Fool's Day prank. The joke was that there were no lions being washed in the Ditch (i.e. moat) of the Tower of London. It was a fool's errand. For well over a century after this, the prank of sending unsuspecting victims to see the "washing of the lions" at the Tower of London remained a favorite April Fool's Day joke. In the mid-nineteenth century, pranksters even printed up official-looking tickets that they distributed around London on April first, promising admittance to the (non-existent) annual lion-washing ceremony.

The Top 100:   10-1 | 11-20 | 21-30 | 31-40 | 41-50 | 51-60 | 61-70 | 71-80 | 81-90 | 91-100