Rav Yisroel Meir HaKohen Kagan of Radin Chofetz Chaim Mishna Berura

HaRav Yisrael Meir (Kagan) Poupko (1838 - 1933) known popularly as The Chofetz Chaim was an influential Eastern European rabbi, Halakhist, posek, and ethicist whose works continue to be widely influential in Jewish life. As his reputation grew, students from all over Europe flocked to him and by 1869 his house became known as the Radin Yeshiva. In addition to his Yeshiva, the Chofetz Chaim was very active in Jewish causes.