Prince Salman bin Abdulaziz, the Governor of Riyadh region, Chairman of Board of Directors of King Abdulaziz Foundation for Research and Archives and general supervisor of Hajj and Two Holy Mosques Encyclopedia Project will inaugurate on Saturday the launch of the Encyclopedia's project to be accomplished by the Foundation in cooperation with other bodies. The Foundation's Secretary General and Chairman of the Project Dr. Fahd bin Abdullah Al Al-Sammari said that this Foundation's scientific initiative emanates from the attention paid by The Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud and the Crown Prince to the service of Islam and Muslims in general and the holy places in particular.