Throughout the past two millennia or more the Jews of Diaspora have persistently maintained their religious and cultural identity in spite of many vicissitudes. Also, as manifested in Jewish history, where favorable conditions exist, politically and economically, Jewish communities have rarely experienced what may be described as a complete assimilation into their surrounding sociocultural milieu. An exceptional case, however, has been noted in China, where a once prosperous and burgeoning community of Jews did indeed experience that fate.