The term 'Mohammedan World' refers to the Islamic faith and its followers. It is derived from the name of the prophet Mohammed, who is considered to be the founder of the religion. The term is used to describe the global community of Muslims, which is estimated to be around 1.8 billion people. Islam is a monotheistic religion based on the teachings of the Quran, which is believed to be the word of God. It is the second largest religion in the world after Christianity.