William the Conqueror ordered this survey in order to find out what he had gained from his conquest of England.
Alveston parish was occupied by 43 families – about 200 people. It was bigger than Stratford-upon-Avon at this time.
The county of Warwickshire had 7,000 families (about 30,000 people). The whole of England had only about 1.5 million inhabitants.