العرب قبل الإسلام
In 2007, al-Fassi published her research into the status of women in the pre-Islamic Arabian kingdom of Nabataea as the book "Women in Pre-Islamic Arabia: Nabataea". Some of the evidence she used included coins and inscriptions on tombs and monuments written in ancient Greek and Semitic. She found that women were independent legal persons able to sign contracts in their own name, in contrast to women in modern Saudi Arabia, who require male guardians to sign contracts. Al-Fassi says that ancient Greek and Roman law gave less rights to women than they had in Nabataea, that "an adaptation of Greek and Roman laws was inserted in Islamic law", and that "it's an ancient adaptation, that [Islamic] scholars are not aware of, and they would be really shocked."