The document summarizes the fall of the Western Roman Empire and the emergence of new kingdoms and empires during the Middle Ages. It discusses how the Roman Empire was divided in 395 AD between the Western Roman Empire centered in Rome and the Eastern Roman Empire centered in Constantinople. The Western Empire weakened over time due to invasions by barbarian tribes and changes in its political, social, and economic structures. Meanwhile, the Eastern Empire was able to survive these invasions and changes. The document then outlines three new empires that emerged during the Middle Ages - the Visigothic Kingdom in Iberia, the Carolingian Empire in France and Germany, and the Byzantine Empire which was the continued Eastern