context: The Great Mosque of Zaytuna or the Great Mosque of Al-Zaytuna or the Great Mosque, is the main mosque in the antique city of Tunis in Tunis, the capital of Tunisia, and the largest and oldest is due to the year on the Maliki school. It was established in 698 (79 AH) by order of Hassan bin Al-Numan and was completed by Ubaid Allah bin Al-Habhab in 732, and is considered the second oldest mosque in Tunisia after the Mosque of Uqba bin Nafi. The mosque is located on an area of ​​5,000 square meters, and it has nine doors, and its internal hall consists of 184 columns, mainly coming from the archaeological site of Carthage. He held the position for a long time as a defense position for his destination on the sea, through his cell. The mosque is led by a body called the Sheikhdom of the Great Mosque.
question: When was the Zaytuna Mosque built in Tunisia?
answers.text: 698