From what I've read, Baghdad NEVER really recovered from the Mongol invasion, and the subsequent loss of its position as the epicenter of the "caliphate".
From what I've read, Baghdad NEVER really recovered from the Mongol invasion, and the subsequent loss of its position as the epicenter of the "caliphate".
Actually Islam never really recovered(Though eventually the western Mongol hordes converted to Islam afterwards, oddly.)
The destruction of Baghdad was probably the most violent and vicious of any city prior to WWII.