Historical Events In December - 25
Saturday, 20 December 2025
0001 Christmas, according to calendar-maker Dionysus Exiguus on December - 25. 

0001 1st Christmas, according to calendar-maker Dionysus Exiguus on this day in history. 

0274 Roman Emperor Aurelian dedicates a temple to Sol Invictus on the supposed day of the winter solstice and day of rebirth of the Sun on this day in history. 

0336 On December - 25 the first1st recorded celebration of Christmas on 2005occurs in Rome 

0336 On this day in history the first1st recorded celebration of Christmas on Dec 25 occurs in Rome 

0337 Earliest possible date that Christmas was celebrated on Dec 25th on December - 25. 

0352 On December - 25 1st definite date Christmas was celebrated on Dec 25th 

0390 Roman emperor Theodosius admits debt on mass murder in Thessalonica on December - 25. 

0498 On December - 25 french king Clovis baptises himself 

0597 England adopts Julian calendar on this day in history. 

0604 On this day in history battle at Etampes (Stampae): Burgundy beat Neustriers 

0795 On December - 25 adrian I ends his reign as Catholic Pope 

0795 On December - 25 adrian I, Italian Pope (772-95), dies 

0800 On this day in history pope Leo III crowns Charles the Great (Charlemagne), Roman emperor 

0820 Leo V, the Armenian, Byzantine gen/Emperor (813-20), murdered on December - 25. 

0875 Charles, the Bare, crowned emperor of Rome on December - 25. 

0967 John XIII crowned Otto II the Red German compassionate emperor on this day in history. 

0969 On this day in history johannes I Tzimisces, crowned emperor of Byzantium 

0979 On this day in history rotardus appointed as bishop of the kingdom 

0999 Heribertus becomes bishop of Cologne on this day in history. 

1000 On December - 25 monarch Istvan crowned king of Hungary 

1046 On this day in history pope Clemens VI crowns Henry III RC-German emperor 

1048 Parliament of Worms: Emperor Henry III names his cousin count Bruno van Egisheim/Dagsburg as Pope Leo IX on December - 25. 

1066 Harold II is killed in the Battle of Hastings, and William is crowned December 25 on December - 25. 

1066 On this day in history william the Conqueror's coronation, held at Westminster Abbey 

1066 William the Conqueror, crowned king of England on this day in history. 

1100 On December - 25 boudouin I of Boulogne crowned king of Jerusalem 

1101 On December - 25 henry I of Limburg becomes duke of Neth-Lutherans 

1121 On December - 25 norbertus van Xanten finds order of the Norbertijnen 

1130 Anti-pope Anacletus II crowns Roger II the Norman, king of Sicily on this day in history. 

1156 Peter Venerabilis, Fr theologist/9th abbot of Cluny, dies at about 61 on this day in history. 

1223 On this day in history st Francis of Assisi assembles first Nativity scene (Greccio, Italy) 

1223 On December - 25 st Francis of Assisi assembles 1st Nativity scene (Greccio, Italy) 

1249 Peter Nolascus, Spanish monastery founder/St, dies on this day in history. 

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