High Quality Content by WIKIPEDIA articles! Toldos Yeshurun is a Non-Profit organization for Jews from the former USSR. It was founded by Rabbi Yitzchok Zilber, leader of the Russian baal teshuvah movement and often called "the father of Russian Jewry", in 2000 with the support of Rabbi Yosef Sholom Eliashiv, Rabbi Aharon Leib Shteinman, and Rabbi Chaim Kanievsky. Since the death of Rabbi Yitzchak Zilber in 2003, the organization is headed by his son, Rabbi Ben Tzion Zilber.