“But why should 1299 CE be considered the founding date of the empire? – there were no famous battles, no declarations of independence or storming of a bastille. The simplest explanations are often the most convincing: that year corresponds to the years 699–700 in the Islamic calendar. By rare mathematical coincidence, the centuries turned at the same time in both the Christian and Islamic calendars. What more auspicious year to mark the founding of an empire that spanned Europe and the Middle East?”