February 13 is the 44th day of the year in the Gregorian calendar; 321 days remain until the end of the year (322 in leap years). == Events == === Pre-1600 === 962 – Emperor Otto I and Pope John XII co-sign the Diploma Ottonianum, recognizing John as ruler of Rome.
February 13 is the 44th day of the year in the Gregorian calendar; 321 days remain until the end of the year (322 in leap years). == Events == === Pre-1600 === 962 – Emperor Otto I and Pope John XII co-sign the Diploma Ottonianum, recognizing John as ruler of Rome.
Source: Wikipedia "February 13" · CC BY-SA 4.0
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