The history of early Anglo-Saxon England is very uncertain and prone to re-interpretation according to the fashion of the time. A Jutish elite may have formed their kingdom in the east, expelling or absorbing rival tribes and Jutish kings settling the land with their own followers until the kingdom reached its traditional borders, as was customary across Britain during the initial Anglo-Saxon invasions and settlement. Whatever the case, Jutish cultural influence was evident across the whole county by the Norman period.