<P> The negative view describes April Fools' hoaxes as "creepy and manipulative", "rude" and "a little bit nasty", as well as based on schadenfreude and deceit . When genuine news or a genuine important order or warning is issued on April Fools' Day, there is risk that it will be misinterpreted as a joke and ignored--for example, when Google, known to play elaborate April Fools' Day hoaxes, announced the launch of Gmail with 1 - gigabyte inboxes in 2004, an era when competing webmail services offered 4 MB or less, many dismissed it as a joke outright . On the other hand, sometimes stories intended as jokes are taken seriously . Either way, there can be adverse effects, such as confusion, misinformation, waste of resources (especially when the hoax concerns people in danger) and even legal or commercial consequences . </P> <P> People obeying hoax messages to telephone "Mr. C. Lion" and "Mr. L.E. Fant" and suchlike at a telephone number that turns out to be a zoo, sometimes cause a serious overload to zoos' telephone switchboards . </P> <P> Other examples of genuine news on April 1 mistaken as a hoax include: </P> <Ul> <Li> 1 April 1946: Warnings about the Aleutian Island earthquake's tsunami that killed 165 people on Hawaii and Alaska </Li> <Li> 1 April 2005: News that the comedian Mitch Hedberg had died on 29 March 2005 </Li> <Li> 1 April 2005: Announcement about Powerpuff Girls Z, by Aniplex, Cartoon Network and Toei Animation </Li> </Ul>

Who created april fool's day and why