sentences:  After Birnbaum founded an adult arm two years later, in order to obtain charitable status and adult support, SSSJ's official name became the Center for Russian Jewry with Student Struggle for Soviet Jewry but continued to be known as SSSJ.It was also known as the Center for Russian and East European Jewry in the latter 1970s and the 1980s.Birnbaum's father and grandfather were recognized authorities on East European Jewry.