46. Nabonassar's innovation

Possibly King Nabonassar instigated the 8th century revolution by inaugurating the era that came to bear his name. Many facts point to his reign as the beginning of an epoch, and hence Nabonassar might be the innovator who established the first era long before the Seleucids. However, not a shard has been found of this hypothetical era. The evidence in hand indicates the Babylonians dated by means of regnal years.