This bowl is one of the most significant examples of ceramics produced during the early Abbasid period. Its lobed rim and delicate shape is also closely related to Tang metalwork as well as contemporary Song ceramics and lacquerware. This illustrates the exchange of style and techniques between Tang China and Abbasid Iraq.The production of opaque white glazed wares in Iraq in the late 8th or 9th century signifies the beginning of a widespread tradition that spread across the Islamic world. It eventually reached Europe where opaque white glazed wares dominated fine-quality ceramic production for many centuries.