[NutBrnHair]

This is a great question and only someone who truly has studied the entire list would see this! I wish there was a good answer. Some chapter designations were skipped and some were re-used. It is/was confusing!

As a rule of thumb, typically I know that the single letter chapters are the oldest. The next decade ended in ____ Alpha, then ____ Beta, etc. We are currently in the _____ Mu designation.