Is there a limit to how far back I can send email?
Yes. You’ll only be able to send email back until April 1, 2004, the day we launched Gmail. If we were to let you send an email from Gmail before Gmail existed, well, that would be like hanging out with your parents before you were born — crazy talk.
– Google explains ‘Gmail Custom Time,‘ it’s 2008 April Fools’ prank
which, once again, fails to outdo Pigeon Rank
Some people are calling Virgle an ‘interplanetary Noah’s Ark.’ I’m one of them. It’s a potentially remarkable business, but more than that, it’s a glorious adventure. For me, Virgle evokes the spirit of explorers such as Christopher Columbus and Marco Polo, who set sail looking for the New World. I do hope we’ll be a bit more efficient about actually finding it, though.
– Virgin Group President and Founder Sir Richard Branson comments on the Mars expedition and colony Virgle, Google’s other 2008 April Fools’ prank which also fails to outdo Pigeon Rank