The term Middle Ages in European history refers to the period between ancient and modern times, for example from the 6th to the 15th centuries. In the Middle Ages, the political and cultural dominance of the Greco-Roman Mediterranean region was replaced by a new, almost Europe-wide world of Christian feudal states.
While the ancient core area was already Christian, in the Middle Ages the rest of the pagan regions of Europe were Christianized. In the early Middle Ages, the basic political order of later times developed. The subsequent high Middle Ages were characterized by the boom in business, science and culture. In the late Middle Ages the slow transition to early modern times took place.