Tsvaygenbaum's mother was born in the Soviet Union; she is a Mountain Jew.
His family were Mountain Jews from the Caucasus region.
The Mountain Jews survived numerous historical vicissitudes by settling in extremely remote and mountainous areas.
The Mountain Jews maintained a strong military tradition.
They have been identified as separate communities, such as the Mountain Jews.
The village was established in 1981 by Mountain Jews from the Caucasus.
A male Mountain Jew, like all men of the Caucasus, wore a dagger as a personal weapon.
Some Mountain Jews started to register themselves as Tats because of secret pressure from the authorities.
As a result of this the words Tat and Mountain Jew became almost synonymous.
The term "Tat" was used in research literature as the second or even first name for Mountain Jews.