What was the period of European unity under charlemange?

The period of European unity under Charlemagne, also known as the Carolingian Empire, spanned from approximately 800 to 814 AD. Charlemagne, crowned Emperor of the Romans by Pope Leo III in 800, sought to consolidate and expand his realm, which included much of Western and Central Europe. He implemented administrative reforms, promoted learning and culture (known as the Carolingian Renaissance), and worked to unite diverse peoples under Christian governance. This era marked a significant moment in the shaping of medieval Europe, fostering a sense of shared identity among the regions he ruled.