<a href="https://en.wikipedia.org/wiki/Mountain_Jews" class="extiw" title="w:Mountain Jews">w:Mountain Jews</a> of the <a href="https://en.wikipedia.org/wiki/Caucasus" class="extiw" title="w:Caucasus">Caucasus</a>, c. 1900.
Jewish Encyclopedia
<i><a href="https://en.wikipedia.org/wiki/Jewish_Encyclopedia" class="extiw" title="w:Jewish Encyclopedia">Jewish Encyclopedia</a></i>