I guess before that there was just a formless void with no time, no past and no future. Ok, maybe not, but no DateTime.pm for sure.
I realized that the 5 year anniversary of the Perl DateTime Project passed by recently. I date it this post to the email@example.com list I made on January 9, 2003. That really got the ball rolling, and I was actually working on the first version of DateTime.pm in the next day or two.
Thanks to everyone who's contributed over the years. I don't think we realized that we'd end up creating _the_ definitive set of Perl date/time libraries, to the point where a _lot_ of people say "oh, I just use DateTime for everything".
Even better, I think we still have one of the best date/time library suites of _any_ language out there. The only thing I've seen in all this time that comes close is the Chronos library for Smalltalk, myself. Of course, if someone wants to point me at one they think rocks, I'm happy to learn more.