Writer
Historian

A historian is a person who studies and writes about the past and is regarded as an authority on it. The purpose of a historian is to employ historical analysis to create coherent narratives that explain "what happened" and "why or how it happened". Professional historians typically work in colleges and universities, archival centers, government agencies, museums, and as freelance writers and consultants. Edward Gibbon 's six-volume History of the Decline and Fall of the Roman Empire influenced the development of historiography.
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