The story of islamic civilization is Know all over the world and European scholars in the past and at
present have written much on the indebtedness of the modern European civilization to islamic civilization which reached the peak of is glory in five centuries after Hijjrah (but not as much is known about the pre islamic ages)A rcheologists began to find ruins in 1800A.D, and ruins are still being uncovered. in the Kingdom of Saudi Arabia great archeological efforts are being carried out in Al-jawf,mada in Salih , and Turaif areas,and elsewhere ,and may important discoveries have recently made and published .The huge cities, long and broad roads , dams , and camels the have been found are enough to tell of an ancient civilization.