If you have to ask that question you haven't learned much about history. Christianity has been the cause of suffering for a great many people. The crusades, done in gods name, slaughtered thousands of people including women and children, destroyed homes, had men of god force themselves on women. The various inquisitions over the years, from the medieval to the Spanish to the Portuguese, they were part of the judicial system of the Roman Catholic Church aimed at combating heresy. Known for murder, mutilation and extreme torture. Christianity makes Islam look like beginners when it comes to terror.