Cairo (Arabic: القاهرة transliteration: Al-Qāhirah), which means "The Vanquisher" or "The Triumphant", is the capital city of Egypt. While Al-Qahirah is the official name of the city, in Egyptian Arabic it commonly shares the dialect's name for the country, transliteration: Masr. It has a metropolitan area population of about 15.75 million people.Cairo is the sixteenth most populous metropolitan area in the world. It is also the most populous metropolitan area in Africa .
The city was founded in AD 969 as the royal enclosure for the Fatimid caliphs, while the actual economic and administrative capital was in nearby Fustat. After Fustat was destroyed in 1168/1169 to prevent its capture by the Crusaders, the administrative capital of Egypt moved to Cairo, where it has remained ever since.