Cairo is the capital of Egypt from 669 AD and the largest city in it. Cairo as the largest city in Africa and the Middle East in the population Cairo is known among ordinary Egyptians in the name of Egypt. Built by Jawhar al-Sicali, commander of the armies of the Fatimids coming from the Morocco country over the city of Fustat, built by Amr Ibn al-Aas, next to the fortress of the Roman Papillon. The population of Cairo is 6,758,581, according to statistics. The population of Greater Cairo reached 20.000 million people (after adding Helwan, Giza, Qalyubia and 6th of October) and its population is the 16th largest city in the world according to the population.