Learning on the Marcos and Adina Katz YUTorah site is sponsored today by Leon & Rhea Landau in memory of Emanuel & Leah Landau and Jacob & Selma Frost and in memory of Hindu & Pinchas Chaimovitz, Batya Gitel bat Moshe Aaron, Yosef Malachi Geudalia HY"D, Ben Zussman HY"D, and Oma Els z"l and in loving memory of Dr. Felix Glaubach, אפרים פישל בן ברוך, to mark his first yahrtzeit, by Miriam, his children, grandchildren & great grandchildren