JAY SMITH summarises some of the research of PATRICIA CRONE and DAN GIBSON regarding Mecca, demonstrating: Mosques built in the first century after the death of Mohammed did not point to Mecca. They consistently pointed to Petra. The geographic features described in the Koran and previously assumed to refer to Mecca do not match the actual features of Mecca. But do match the features of Petra. Although Mecca has traditionally been considered a significant trade centre, this does not match the historical evidence. This video consists of excerpts from a longer (70 min.) talk given by JAY SMITH, titled "An Historical Critique of Islam's Beginnings", first published online on September 12 2013.