Mountain Jews or Caucasus Jews also known as Juhuro, Juvuro, Juhuri, Juwuri, Juhurim, Kavkazi Jews or Gorsky Jews (Azerbaijani: Dag Y@hudil@ri, Hebrew: yhvdy qvvqz Yehudey Kavkaz or yhvdy hhrym Yehudey he-Harim, Russian: Gorskie evrei, translit.

Mountain Jews speak Judeo-Tat, also called Juhuri, a form of Persian, it belongs to the southwestern group of the Iranian division of the Indo-European languages. Judeo-Tat has Semitic (Hebrew/Aramaic/Arabic) elements on all linguistic levels. Among other Semitic elements, Judeo-Tat has the Hebrew sound "ayin" (`), whereas no neighboring languages have it. Until the early Soviet period, the language was written with semi-cursive Hebrew alphabet. Later, Judeo-Tat books, newspapers, textbooks, and other materials were printed with a Latin alphabet and finally in Cyrillic, which is still most common today. The first Judeo-Tat-language newspaper, Zakhmetkesh (Working People), was published in 1928 and operated until the second half of the twentieth century.  Originally, only boys were educated through synagogue schools. Starting from the 1860s, many well-off families switched to home-schooling, hiring private tutors, who taught their sons not only Hebrew, but also Russian and Yiddish. In the early 20th century, with advance of sovietization, Judeo-Tat became the language of instruction at newly founded elementary schools attended by both Mountain Jewish boys and girls. This policy continued until the beginning of World War II, when schools switched to Russian as the central government emphasized acquisition of Russian as the official language of the Soviet Union.  The Mountain Jewish community has had notable figures in public health, education, culture, and art.  In the 21st century, the government is encouraging the cultural life of minorities. In Dagestan and Kabardino-Balkaria, Judeo-Tat and Hebrew courses have been introduced in traditionally Mountain Jewish schools. In Dagestan, there is support for the revival of the Judeo-Tat-language theater and the publication of newspapers in that language.

Answer the following question by taking a quote from the article: what is one of the institutions
Originally, only boys were educated through synagogue schools.