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Giuliano, A., Arco di Costantino , Milan 1955 , 
Honorific arch to Constantine, emperor; dedicated by the Senate and People of Rome. Rome. 315-316 
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To the emperor Caesar Flavius Constantinus, the greatest, pious, fortunate, Augustus. The Senate and People of Rome dedicated [this] arch decorated with triumphs, because with divine inspiration and the greatness of his disposition, with his armies and the just force of arms, the commonwealth ( res publica ) was avenged of the tyrant and [his] entire faction.
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