Islam is one of the three monotheistic religions, and as such believes in one God. Islam was officially formed when Muhammad moved from Mecca to Medina. He preached a message he received from an angel. The concept of Islam is reflected in the Five Pillars of Islam, which are: The concept of Islam is reflected in the Five Pilars of Islam, which is: faith in one God, prayer five times a day, charity, fasting, and at least once in a lifetime the pilgrimage.
All five pillars can be summarized in one concept that one should be obedient to God's will.