Greece and its beautiful rocky lands and islands have been occupied by many great powers throughout history yet it has somehow managed to hold on to its language, yet many others have settled within its modern borders.
Minority languages which are sometimes considered dialects have multiple possible answers
The Arvanites of Greece were what made this map the hardest to make, the reason for that is because that while they are a traditionally Albanian speaking population, they consider themselves Greece and have lived in Greece since the 13th century and they live predominantly in the most populated regions of Greece, so instead of putting their area of influence as ALL OF THE MOST POPULATED PARTS OF GREECE, I instead opted to pick a few towns in and around the area to show that their influence is still there.
Another note: Tsakonian is a Greek Language not mutually intelligible to the standard Greek of today, it is though to be the only Greek language still living to be a direct descendant of the Ancient Spartan language. I have it on this map being spoken in about 6 towns, it should be understood that the sources on some of those come from the 1980's meaning that its possible some of those towns no longer have speakers of the language as it is mostly spoken by the older communities.