Determining the birth date of an open source project is a open debate. However in our case, I think we can consider the first official open-source release which is 1995-05-01
Btw I find it funny that PostgreSQL 9.5 will be released 20 years after Postgres95 :)
This sounds to me like a nice opportunity to organize bithday parties everywhere :) If we want to organize a joint effort to celebrate this, I think we could build a small birthday team to federate local initiatives.
For instance :
- contact all PUGs and local association and try to get them involved - contact all PG and FLOSS conferences and try to get them involved as well - define a "celebration week" and let each local user group choose the best date inside that week - organize the "celebration week" in september-october, to be closer to the release of PostgreSQL 9.5... Btw May 1st is really near and it's certainly not a good choice in many countries. - define a common logo, a common hasthag and maybe a website
