Specialists in the Achaemenid Empire don’t like to talk about Stefan Bittner. His Doktorarbeit is the only monograph on the Achaemenid army which has ever been published, but it takes exactly the approach which was inspiring another group of scholars to organize conferences and rethink the field: it relies almost completely on Greek literature and artwork, and treats these sources as a precious collection of facts to be worked into a coherent whole. In the decades which followed, those other scholars knocked so many holes in this approach that it is hard for them work with a book like his, so they tend to cite his thesis and say nothing more. I don’t think that this is really fair, since nobody can predict how academic fashion will shift or what new evidence will become available. People who try too hard to ride the crest sometimes find themselves flailing in midair as the wave below them crashes down. There is a sad joke that farming is a simple job where you just have to predict the weather, fuel costs, and food prices a year in advance; PhD students have to predict the job market 3 to 10 years in advance. And in the early 1980s, it was not so easy to hear about conferences and intellectual movements in other countries as it is today. So this week, I would like to mention one of his good ideas which seems to have been ignored.