I was kinda bored and wanted to find out what the first thread was in each forum. I decided to look them up, and figured I'd share them with you. Here they are. The actual "FIRST" threads are by Johan announcing the new forum, so I've linked the actual first real thread for each forum.
(Some of them I posted two threads, because the first one wasn't too describing, or wasn't very long. They are listed in order though!)
I thought it was kinda cool seeing all these, too bad we can't reply to any of them!