A map by Cambridge University Press, 1929
Macedonia is considered a part of Greece

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A map by the National Geographic magazine
Again Macedonia is a Greek region

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A map from the Ottoman times
The featured Macedonian towns had Greek names at the time.

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A British map from 1880.
Apparently there is no "Macedonian nationality" in the Balkans

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A French map from 1937 showing Yugoslavia.
The "Republic of Macedonia" is clearly named "Vardarska" (its original name)

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Suddenly in 1990 this region is named "Republic of Macedonia" and it arises teritory claims over all of its neighbors (Greece, Bulgaria, Albania)