Alcimus, steward of T. Claudius Livianus, has dedicated the earliest known sculpture of a Mithras Taurcotonos. Vermaseren and Gordon believe that Tiberius Claudius Livianus was commander of the Praetorian Guard in 101 AD.
Alcimus, a wealthy slave steward of Tiberius Claudius Livianus, a knight close to Trajan who became prefect of the Praetorium in 101, can be dated to the very end of the 1st or, rather, the beginning of the 2nd century.
—Les cultes de Mithra dans l'Empire romain
This is the earliest sculpture of Mithras killing the bull known to date.