What did Charlemagne do?

Answer 1

Charlemagne extended the borders of the Kingdom of the Franks to the east and south, gaining great tracts of territory. So doing, he turned the Kingdom of the Franks into a great empire, which became ancestral to both France and the Holy Roman Empire. He also promoted literacy and education, was a defender of the Church, and protected the Pope. He reformed the economy of Western Europe by introducing new standards for coinage and seeing to it that they were strictly maintained. His reign was a decisive turning point in the Early Middle Ages.

The reign of Charlemagne can be considered a turning point in medieval history, both politically and culturally, after which conditions improved greatly in many ways.

Charlemagne is considered by many people as an ideal monarch, and the greatest monarch of the Middle Ages, possibly the greatest in European history.