After he gained control of England, william the conqueror required that a survey to be completed about his newly acquired people. The Results were documented in the : Domesday book
The book was made in 1086 and filled with various surveys of his people in England and Wales
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Answer and Explanation:
Brokers tried to sell stocks, but no one wanted to buy them. Many people scrambled to buy stocks on margin. People wanted to buy stocks, but there were none left to buy.
I'm 99.99% sure it's A) The Iron Age