476, when Romulus Augustulus was deposed by Odoacer.
The myth which we know from the stories of Oedipus, Perseus, Telephus, Pelias and Neleus, Romulus, Sargon of Agade, Moses, the Indian hero Krishna, and many others, has been transferred to the founder of the Persian empire.
Subsequently, at the end of the republic, Quirinus became identified with the deified Romulus, son of Mars.
One of the greater flamens was attached to the service of Quirinus, a second college of Salii founded in his honour, and a festival "Quirinalia" celebrated on the 17th of February, the day of the supposed translation of Romulus to heaven.
Cain's subsequent founding of a city finds a parallel in the legend of the origin of Rome through the swarms of outlaws and broken men of all kinds whom Romulus attracted thither.