Why you have an itch if Islam is given the credit for these advancement. This documentary was made by PBS not by some Muslim. So if non-Muslims are telling you that Islam brought advanced and civilized culture then how are you going to deny that? You need to look at the history of Arabs before Islam. They were barbaric and unsophisticated. Don’t go as far as 4 or 5 thousand old Babylon or Egyptian society. I am talking about situation of Arabs 1400 years ago right before Islam.