Complex sentence: The face veil pre-dates Islam, and had been used by certain Arabian pre-Islamic cultures, being a custom imported from Najd, a region in Saudi Arabia and the power base of its Salafi fundamentalist form of Islam.
Split into simpler sentences: The face veil pre-dates Islam, and had been used by certain Arabian pre-Islamic cultures. It is a custom imported from Najd, a region in Saudi Arabia and the power base of its Salafi fundamentalist form of Islam.