Analysis of information sources in references of the Wikipedia article "Filiates" in English language version.
Until the early 20th century, economic strength lay in the hands of the Muslim landowner class, many of whom were engaged in commerce and usury. This situation had been changing gradually since the mid-19th century as small numbers of individuals and later families from the province of Ioannina, settled in the principal towns of the region establishing business. By the 1920s, they were joined by local men who slowly came to constitute an elite that threatened to wrest economic control from the Muslim notables. The presence of these men led to a gradual Hellenization of formerly Albanian-majority towns, like Margariti and Filiates that was viewed with disdain by the Muslim peasantry
On the 21st of September the German forces started to withdraw... destruction prevailed in the city.
Sancaks Yanya (Kazas: Yanya, Aydonat (Paramythia), Filat (Philiates), Meçova (Metsovo), Leskovik (war kurzzeitig Sancak) und Koniçe (Konitsa)
"Η τρομοκρατία των Τσάμηδων κατά την εποχή εκείνη ξεπέρασε κάθε προηγούμενο μέχρι τα τέλη Μαρτίου του 1854. Η Παραμυθιά, η Πάργα, οι Φιλιάτες υπέστησαν μεγάλες καταστροφές. Στα χωριά Φοινίκη, Φανερωμένη, Σίδερη, Γηρομέρι, Κοκκινίτσα, Γούλα και Παλαιοχώρι κατασφάχθηκαν άντρες και γυναικόπαιδα και το μοναστήρι της Βέλλιανης Παραμυθιάς καταστράφηκε σε πολύ μεγάλο βαθμό.
(..) complaints filed by a committee of Chams of Filiates. The latter claimed that Albanian should be taught in public schools, and called for the free use of the Albanian language among students. Furthermore, they asked for permission to open private schools in Filiates and other villages. (..) The complaints of the inhabitants of Filiates ended up in a petition to the League of Nation, without success once more.