This work illuminates four centuries of medieval history, from the
expansion of Latin Christendom, from its base in France, Western Germany
and North-Central italy into the European outskirts, at a time of rising
population, economic growth and dynamic cultural change. This expansion
also saw the English colonization in the Celtic world, German immigration
into much of Eastern Europe, the reconquest of Spain and Sicily, as well as
the introduction of Christianity to Bohemia, Hungary, Poland and
Scandinavia.