Ketubah, marriage contract, manuscript, ink and paint on paper, 20th of Menahem 5671 [1911 August 14], Bombay, India The ketubah (plural ketubot ) is the standard marriage contract that Jewish law requires a groom to provide for his bride on their wedding day. It is intended to protect the woman, primarily by establishing the man's financial obligations to her in case of divorce or widowhood. In addition to the financial clauses, the text of the ketubah outlines other obligations undertaken by the groom, including traditional conjugal rights such as food, clothing and shelter. The exact date when the ketubah became a central part of the Jewish marriage ceremony remains unknown. It is a rabbinic institution, not a biblical one, and goes back to Talmudic times (70-500 C.E.).