Contribution of Islam to Mankind

What about Muslims' achievements and inventions?  Philosophers in Islam such as Ibn Al-Haytham and Ibn Sina, who practiced primitive medicine, and one who formulated algebra are recognized, but where is the modern contribution of Islam today?  What kind of life would the Muslim countries be living if they had not discovered oil in their lands and used foreign technology?
All the comforts Muslims enjoy today are the products of Christian minds.  There is a sharp contrast between the social and economic conditions of the many countries in Europe and North America where societies were founded on the basis of Christianity and the teachings of the Bible, and the social and economic conditions in many Islamic countries.