Yeah, crusades sent out by the Roman Catholic church, which is not representative of all Christianity. Also, if you look at your history, during this time Islamic armies were raping women, pillaging whole countries, and murdering women and children while taking over much of Eastern Europe.
Look up the fall of the Byzantine Empire, and everything that happened before and after that.
Islam has been VERY violent for thousands of years, and has never stopped being violent.
Stop comparing, because you don't win.