September 11 is the 254th day of the year (255th in leap years) in the Gregorian calendar; 111 days remain until the end of the year. == Events == === Pre-1600 === 9 – The Battle of the Teutoburg Forest ends: The Roman Empire suffers the greatest defeat of its history and the Rhine is established as the border between the Empire and the so-called barbarians for the next four hundred years.
September 11 is the 254th day of the year (255th in leap years) in the Gregorian calendar; 111 days remain until the end of the year. == Events == === Pre-1600 === 9 – The Battle of the Teutoburg Forest ends: The Roman Empire suffers the greatest defeat of its history and the Rhine is established as the border between the Empire and the so-called barbarians for the next four hundred years.
Source: Wikipedia "September 11" · CC BY-SA 4.0
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