Scientific and literary activity in the era of the Ayyubid family
Salah al-Din al-Ayyubi reigned Egypt in the year sixty-seven and five hundred, after which he controlled an important and vital region, which is the Levant, the Hijaz, NBA Sets Yemen and part of the countries of Asia Minor, and after his death it remained in the hands of his sons and relatives until the year forty eight and six hundred.The era of t