Answer: the metric system
Answer:
Domesday Book is the original record or summary of William I’s survey of England.
Explanation:
I believe it was B, but wait fir another answer
Quite simple: a region is the geographical zone where people lived and/or particular events took place. A period is the chronological segment of linear history (timeline) where such people lived and/or the event took place. For example, the Crusades took place in the Middle East while the period is the Middle Ages.
