Richard Dice writes to tell:

The Toronto Perl Mongers meet monthly for a combined technical and social meeting -- except in December, when the meeting is purely social. To celebrate the 20th birthday of Perl we scheduled our December 2007 meeting for the 18th. Richard Dice brought a special cake. (It was chocolate, not onion-flavoured as some people feared.) Rough 20 Mongers came out to the event. Fun - and cake! - was had by all. We hope Mongers world-wide enjoy some of the photos taken of the event.

And on the other side of North America, Andy Sweger writes about the Seattle Perl Mongers' celebration:

At the regular monthly SPUG meeting on December 18th, 2007, we had a little celebration for Perl's 20th birthday which just happened to be on the same day. We had a lovely cake and we sang happy birthday to Perl for Larry. (Don't mind the bit about Perl 6, Larry. That guy just had too much cake.)