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was redefined by a statute of Queen Elizabeth I as 5,280 feet, to tie in with agricultural practice. In 1620, the polymath Edmund Gunter developed a method of accurately surveying land using a surveyor's chain 66 feet long with 100 links. The 66-foot unit, which was four perches or rods, took on the name the chain. By 1675 it was accepted, and Ogilby

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