Muhammad, Allah, Mecca, and the formation of Islam are completely unknown to secular history. All we know of them is derived from the Qur’an and Hadith. The earliest and most important collection of Hadith is called the Sira, or Biography. Compiled by Ibn Ishaq, the Sira provides the only written account of this man, his god, place and religion within two centuries of his death. There is no other valid source from which Muhammad can be seen, or Islam can be interpreted, differently.