“A widely-held theory is that the Church chose December 25th as Jesus Christ’s birthday (Dies Natalis Christi) to appropriate the festival of Sol Invictus’s birthday Dies Natalis Solis Invicti, held on the same date.”
“Constantine decreed Dies Solis (day of the Sun – “Sunday”) – as the Roman day of rest.”
Sol Invictus – celebrated on December 25
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