According to Islam a man can have up to 4 wives, but if he cannot do justice between them, then he can only marry ONE. Surprisingly to many, the statement of marrying only one is found only in the Qur'an, and not in any other religious scripture. Muslim women wear a veil to be modest and protected in society, and most important of all, because it is a commandment from their Lord.
Clip taken from the lecture "Christ in Islam" by Ahmed Deedat.