I think this might be finded helpful when completing the tech-tree (I haven't got time to read it now). The stuff is really focused on military:


Scots Irish (55 BC - 846 AD)

Norse Irish Army (846-1260 AD)
(Comment: should we base them on pre-viking invasion military style or post?)

The Magyars - (650-997 AD)


Feudal Spanish - (711-1350 AD)