Forming the basis for the discussion of women becoming sofrot, Talmud Gittin 45b states: "Sifrei Torah, tefillin, and mezuzot written by a heretic, a star-worshipper, a slave, a woman, a minor, a Cuthean, or an apostate Jew, are unfit for ritual use." The rulings on Mezuzah and Tefillin are virtually undisputed among those who hold to the Talmudic Law. As Arba'ah Turim does not include women in its list of those ineligible to write Sifrei Torah, some see this as proof that women are permitted to write a Torah scroll. However today, virtually all Orthodox (both Modern and Ultra) authorities contest the idea that a woman is permitted to write a Sefer Torah. Yet women are permitted to inscribe Ketubot (marriage contracts), STaM not intended for ritual use, and other writings of Sofrut beyond simple STaM. In 2003, Canadian Aviel Barclay became the world's first known traditionally trained female sofer. In 2007 Jen Taylor Friedman, a British woman, became the first female sofer to scribe a Sefer Torah. In 2010 the first Sefer Torah scribed by a group of women (six female sofers, who were from Brazil, Canada, Israel, and the United States) was completed; this was known as the Women's Torah Project. Also, not just any man may write a Sefer Torah; they should ideally be written by a "G-d-fearing person" who knows at least the first layer of meanings, some of them hidden, in the Torah.