An important Katam initiated by the investigating professor in the warning to the importance of the Mamluk era and the necessity of studying it in books that are closely documented (including Ibn Tulun, the author of the book) to reveal the major influences in our life and culture. Then the lights focus on Damascus and the period of the transfer of the ruling from the Ayyubids to the Mamluks, to warn after that that this book translates into the first princes in the Mamluk state since the year 658 AH, and that it continues in translations until the year 943 AH.