It happened today – on this day in history – December 25
352: The first definite date Christmas was celebrated on this day. 597: England adopts the Julian calendar. 800: Pope Leo
Read more352: The first definite date Christmas was celebrated on this day. 597: England adopts the Julian calendar. 800: Pope Leo
Read more800: Pope Leo III crowns Charles the Great (Charlemagne) Emperor of Rome. 1066: William The Conqueror is crowned King of
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