Rabbi Shlomo Zalman AuerbachRabbi Shlomo Zalman Auerbach (23rd of Tammuz, 5670; July 30, 1910 – 20th of Adar I) was one of the prominent halachic authorities of the 20th century.In Adar of 5709 (1949), he was appointed as the head of the Kol Torah Yeshiva, a position he held for 46 years, until his passing.