The world map in the muqaddima
more here...
When visiting one of the cartographic collections in Istanbul some years ago I was told that there is some fear that some Arabs might use Ottoman maps as "proofs" in political conflicts... they pointed specifically to Iraqi use of Ottoman maps in the gulf crisis in the summer of 1990 in order to proove the "Iraqiness" of Kuwait... I don't remember seeing examples of such a thing... But today I came across this article... interesting...