...and btw who are the Kimmereier? (I never heard of them before)
In English: Cimmerians. D&D fans should recognize that as the name Robert E. Howard chose for Conan's nationality, but he didn't just make it up. Herodotus mentions the Cimmerians in his History:
Scythia still retains traces of the Cimmerians; there are Cimmerian castles, and a Cimmerian ferry, also a tract called Cimmeria, and a Cimmerian Bosphorus. It appears likewise that the Cimmerians, when they fled into Asia to escape the Scyths, made a settlement in the peninsula where the Greek city of Sinope was afterwards built. The Scyths, it is plain, pursued them, and missing their road, poured into Media. For the Cimmerians kept the line which led along the sea-shore, but the Scyths in their pursuit held the Caucasus upon their right, thus proceeding inland, and falling upon Media. This account is one which is common both to Greeks and barbarians.