Prince Abdulaziz bin Majed bin Abdulaziz, Governor of Madinah region, will patronize here tomorrow at Madinah-based Islamic University the opening ceremony of a symposium entitled " Sources of Madinah's history from the 1st to 9th Hijri century, presentation and analysis of samples'' to be organized by Prince Salman bin Abdulaziz Chair for Studies of the History of Madinah at the University. The University's Rector Dr. Mohammed bin Ali Al-Oqla expressed his thanks to and appreciation of Crown Prince Salman bin Abdulaziz Al Saud, Deputy Premier and Minister of Defense for his support for the chair, noting that 25 researchers at home and abroad will take part in the two-day symposium.