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In page Gilan Province:

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Five Iranian languages are spoken in Gilan — Gilaki, Taleshi, Persian, and, to a smaller extent, Tati and Kurdish. All (excluding Persian) belong to the northwestern branch of Iranian languages. Non-Iranian languages are mainly Azerbaijani and to a greater extent Georgian, Armenian, Circassian, and some Gypsy (Romany). Three million people speak Gilaki as first or second language.