Tosafot

Anyone who studies the Talmud knows the "page layout"—the format where the central text is surrounded by Rashi and Tosafot commentaries, which has been the default in every edition of the Babylonian Talmud for centuries. But few know that the designer of this "page layout" was neither a rabbi, a yeshiva student, nor even Jewish.

Rabbenu Tam's interpretations form the foundational basis for all Tosafot collections, alongside his notable work, "Sefer HaYashar," a two-part compilation of responsa and Talmudic interpretations.