References in classic literature ?
Restored by order of the Caliph Omar, it was definitely destroyed in 761 or 762 by Caliph Al-Mansor, who wished to prevent the arrival of provisions to Mohammed-ben-Abdallah, who had revolted against him.
When the Muslim Caliph Omar came to the city he gave the keys of the Church of the Holy Sepulchre to the respected Nusseibeh Muslim family.
In the same area, known to Muslims as Al Haram Al Sharif, the third holiest mosque in Islam, stands Al Aqsa Mosque, commissioned by the Second Caliph Omar in the seventh century.
Some Shia mosques in Iran organize festivities on the anniversary of the killing of the Caliph Omar, sacred to the Sunnis, and celebrate his assassin, who is said to have been of Iranian descent.
The Pact of Omar was instituted by the second successor of the Prophet Muhammad (PBUH), the Caliph Omar ibn Al-Khattab.
The canal linking the Nile to the Red Sea proposed by Caliph Omar
State authorities are simple public servants; they just receive the determined amount of salaries; the figures they need to take as models include the Prophet Muhammad and Caliph Omar.
Amr ibn Al-As, the Arab military commander who is most noted for leading the Muslim conquest of Egypt in 640 AD, by order of Caliph Omar, was the first Arab conqueror of Egypt.
The minaret is associated with Aden Mosque that was built during the time of Caliph Omar Bin Abdulaziz.
The minaret of this mosque, which was build by Caliph Omar bin al-Khattab, is the first in the whole of the Levant, and has been destroyed by the soldiers of the tyrant," it added, referring to President Assad.
Rousseau tells it this way: "It is said that the Caliph Omar, when asked what should be done with the Library of Alexandria, answered in these terms: 'If the Books in this library contain things contrary to the Koran they are bad and ought to be burned.
There are other examples of religious tolerance, especially in Istanbul and Jerusalem, where the Caliph Omar once refused to pray inside the Church of the Holy Sepulchre lest his fellow believers turn this all-important church, which is believed to house the tomb of Jesus, into a mosque.