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On 29th October AD 312 the first Roman Emperor converted to the Christian faith, Constantine the Great, entered Rome. He was a worshipper of the sun god, Sol. On 28th October the forces he commanded were trying to conquer Rome. There was a great battle to take a bridge leading to the city. His army was greatly outnumbered but he claimed to have seen the sign of the cross in the heavens, hearing the message “In Hoc Signo Vinces” (“In this sign you will overcome”). He claimed that God instructed St. Constantine to put the cross on all the shields of his men.

In fact it was the letters Chi-Rho, a symbol is composed of the first letters in the Greek word for Christ, which made the symbol of a cross. Constantine’s army won a decisive battle and from that day there was freedom in the Roman empire for Christians to worship Jesus.

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