I am not referring the year of creation, which it seems German are very proud of (FC Schalke 04, Hannover 96).
Why do some 1.Bundesliga or 2.Bundesliga teams have the number one and a dot: 1.
Here are a few notable examples: 1. FSV Mainz 05, 1. FC Nürnberg, 1. FC Köln, 1. FC Union Berlin...