Answer:
William the Conqueror established a tradition of royal authority in England by retaining large amounts of land under his direct control, forcing all vassals to swear first allegiance to him, and keeping account of all property in England through a census.
Bad harvests maybe im pretty sure
<span>prestige, power, access to raw materials, opening up new markets and the spread of Christianity.</span>
high birth rate. there were a lot of babies being born
