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by Waldeck

Sol Invictus ("Unconquered Sun") was a Roman god identified in the later Roman empire^[ambiguous] with Sol, accompanied with the epithet invictus meaning unconquered that was commonly given to Sol from the 2nd century AD onwards. There is much confusion about Sol Invictus because modern scholarship long maintained that he was actually a distinct sun god introduced from Syria by the emperor Aurelian in AD 274.