Quote Originally Posted by Frontline1944 View Post
I would think the other way around. When one has sufficient documentation, one can extrapolate minor details.
When discussing EB's time-frame there rarely is enough evidence to extrapolate minor details. To give you an example, of the Romans only one period in their history (the civil wars leading to the fall of the republic and the establishment of the empire) is extensively documented, and even then there are large gaps in our knowledge. So when dealing with an obscure subject, such as the workings and divisions of the Celtic military, one is forced to make large assumptions or simply give up.