Arranged marriages, honour killings, beheadings, trains, planes,people and aeroplanes being blown up. The Muslim world of old no doubt contributed to civilisation but i'm afraid that was a long, long time ago. Ask most people what they associate with Islam today and it won't be their what they did centuries ago, but the way that it's followers behave today. Like it or not the perception of Islam today is that it is regressing into a primitive and savage religion and it can only blame itself.