structural:reformatting, information:classification
The Cimmerians were an ancient Eastern Iranic equestrian nomadic people originating in the Pontic–Caspian steppe, part of whom subsequently migrated into West Asia. Although the Cimmerians were culturally Scythian, they formed an ethnic unit separate from the Scythians proper, to whom the Cimmerians were related and who displaced and replaced the Cimmerians. The Cimmerians themselves left no written records, and most information about them is largely derived from Neo-Assyrian records of the 8th to 7th centuries BC and from Graeco-Roman authors from the 5th century BC and later.