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In page Epirus:

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The definition of Epirus has changed over time, such that modern administrative boundaries do not correspond to the boundaries of ancient Epirus. The region of Epirus in Greece only comprises a fraction of classical Epirus and does not include its easternmost portions, which lie in Thessaly. In Albania, where the concept of Epirus is never used in an official context, the counties of Gjirokastër, Vlorë, and Berat extend well beyond the northern and northeastern boundaries of classical Epirus.[citation needed]