The Gallic Empire was a breakaway state that existed from 260 to 274 AD during the Crisis of the Third Century in the Roman Empire. Established by the general Postumus, it represented a significant fragmentation of Roman authority, encompassing parts of modern-day France, Spain, and Britain. This period was marked by civil war, economic instability, and the challenge of external threats, leading to the emergence of multiple claimants to imperial power.
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