There appears to be a number of opportunities here, and why don't we take advantage of them?
Given we have a couple of dates to mark key events about a year apart - May 1, 1995 (Postgres95-the foundation of what is used today) and July 8, 1996 (Global Community Development Group) - why not facilitate events throughout the year culminating in one party with everyone putting in their support in some way.
> For the 10th birthday we used the start of the online presence as our > birthday, not the Postgres95 release. That's next year. > > It would seem odd to change the definition and celebrate a 20th birthday 9 > years after the 10th.
In Cuba the birth date of PostgreSQL-Cuba is the 14 of december.