Slavic dialects of Greece

Traditional non-Greek languages zones in Greece. Greek is the dominant language throughout Greece; inclusion in a non-Greek language zone does not necessarily imply that the relevant minority language is still spoken there.
Proclamation of Greek nationalists from 1926, per which the Bulgarian language is forbidden for the locals
Slavomacedonian voice newspaper from March 25, 1944. The newspaper was published in a non-standardized Kostur dialect by the Slavomacedonian National Liberation Front during the WWII.

Eastern South Slavic dialects of Macedonian and Bulgarian are spoken by minority groups in the regions of Macedonia and Thrace in northern Greece. Usually, dialects in Thrace are classified as Bulgarian, while the dialects in Macedonia are classified as Macedonian, with the exception of some eastern dialects which can also be classified as Bulgarian.