stylistic:tone
Religion

The majority of Egyptian Muslims adhere to the Sunni branch of Islam. Nondenominational Muslims form roughly 12% of the population. There is also a Shi'a minority. The Jerusalem Center for Public Affairs estimates the Shia population at 1 to 2.2 million and could measure as much as 3 million. The Ahmadiyya population is estimated at less than 50,000, whereas the Salafi (ultra-conservative Sunni) population is estimated at five to six million. Cairo is famous for its numerous mosque minarets and has been dubbed "The City of 1,000 Minarets". The city also hosts Al-Azhar University, which is considered the preeminent institution of Islamic higher learning and jurisprudence; founded in the late tenth century, it is by some measures the second oldest continuously operating university in the world. It is estimated that 15 million Egyptians follow native Sufi orders, with Sufi leadership asserting that the numbers are much greater, as many Egyptian Sufis are not officially registered with a Sufi order. At least 305 people were killed during a November 2017 attack on a Sufi mosque in Sinai.