Ok, the time of the roman empire is perhaps a little too far backwards in my opinion, but it depends....
Yes, it's possible to build up a story from that time on.

The one i believe in begins about 100 years ago, and it's not only Germany-related. But as i'm leaving today for a short holiday trip, it has to wait and is perhaps a little bit too complex for a few lines in a comment.
Just wonder about the worldwide financial system, its profiteers, and the special geographical position of Germany in the heartland of Europe, as a clue...