The story of building Cairo
1. Gawhar called for future tellers or astrologists to build a new city on a good horoscope
2. They set up wooden posts with a rope tied between them around the city, with bells ringing to signal the start of the foundation
3. A crow resting on the rope caused the bells to ring, and the workers began the foundation
4. The planet "al-Qahir" or Mars had appeared, so they called the city "al-Qahira"