I think islam preaches violence,and terrorism to convert people from one faith to the other. Conversions by coercive methods and terrorising people and discriminating non-moslems, Improper treatment of women. These theology is best suited for medieval barbarians. Now the world is enjoying the scientific advancements in all field of life. If properly educated and have economic fulfilment no body will encourage or participate in terrorism. Fanatism is the other cause for terrorism. Moderate thinking in the childhood helps better civilization. Peace co-existance is the mother of salvation.