Analysis of information sources in references of the Wikipedia article "9th century" in English language version.
The year is 843 C.E., and the Carolingian Empire has reached the peak of its expansion, covering more territory in Western Europe than any other dynasty since the Roman Empire.
The year is 843 C.E., and the Carolingian Empire has reached the peak of its expansion, covering more territory in Western Europe than any other dynasty since the Roman Empire.