Siege of Baghdad (detail), miniature from a 1435–36 edition of The Book of Victory, by Sharaf ad-Din Ali Yazdi. © The Metropolitan Museum of Art, Louis V. Bell Fund, 1967.

Siege of Baghdad (detail), miniature from a 1435–36 edition of The Book of Victory, by Sharaf ad-Din Ali Yazdi. © The Metropolitan Museum of Art, Louis V. Bell Fund, 1967.