based King Abdulaziz University was established in 1384 AH as a non-governmental university, but in 1391 AH it became a governmental university. The university includes about 58,000 students. The Dhahran-based King Fahd University of Petroleum and Minerals began as a college in 1383 AH, and was developed into a university in 1395 AH. King Faisal university was established in 1395 AH. On 11/3/1419 AH, a Royal decree was issued to establish King Khalid university in Abha. In 1424 AH, a Royal decree was issued for the establishment of three universities, namely: Qassim university, Taif university and Taiba university. The Saudi universities have been positively contributing to the development of scientific research ,and they have been active at the scientific conferences.