The Islamic faith, through the Islamic Empire, managed to spread out very quickly and over a very big space with relative ease. The Islam, from its birthplace in Arabia, in just few decades, managed to unity big number of people and after that by using military force managed to spread all over the Middle East, North Africa, parts of Spain, most of Central Asia and south part of Siberia, to the northwestern part of China and northwestern part of India, as well as parts of the eastern coast of Africa.