Some people do not think why Allah did not let Islam prevail the world until now. Why did Allah let Islam prevail the world in the time of the Prophet Solomon (pbuh)? Because the Prophet Solomon (pbuh) was very cheerful, very extroverted and he attached great importance to arts and science. When there is a magnificent system, Allah lets Islam prevail the world. Allah does not let misery prevail the world. - Harun Yahya