Yaakov Yisrael Kanievsky (Hebrew: יעקב ישראל קַנִיֶּבְסְקִי), known as The Steipler or The Steipler Gaon (1899 – 10 August 1985),[2] was a Haredi rabbi, Talmudic scholar, and posek[3] (decider of Jewish law in new situations), and the author of Kehilos Yaakov, a 19-volume commentary on the Talmud.[4]
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