In NY, step meetings often have a traditions meeting on a designated week (or day) of the month. My HG has one the last saturday of every month. Last week we discussed the 12th tradition. Don't know if any groups do that where you are, but you can usually find out by checking a meeting list. If not, it's something you could suggest if you become a member of group that has step meetings.
Best place to start with this stuff, as you know, is with the 12 and 12. If you want to take it a little further you can also pick up the book Dr. Bob and the Good Oldtimers. It used to be available at all AA meetings, but isn't as popular these days. I have it, yet never read it. I know it contains a lot of AA history though, and talks a lot about how the traditions came to be. I'm sure it's available on amazon.