Just a little bit of historical truth: the Juhuri language is spoken by Tat people. The largest group of Jewish Tats live in Guba area of Azerbaijan, and there is a Christian (gregorian) group of Tats, who live in Shemahi and Khachmaz areas of Azerbaijan. The biggest group of Tats are actually muslims, and even though many assimilated into turkic culture of Azerbaijan, a large group of Muslim Tats still live in Azerbaijan in Apsheron and Ismailin regions. Tat language or Juhuri is a dialect of Iranian. Claiming it is a Jewish language is comparable to claiming taht Russian is a Jewish language, because there are millions of Jews who speak Russian as a native tongue.
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from the article: Saving another dying Jewish language before it's too late