Hypnos (Sleep), Nyx (Night), and Thanatos (Death) were depicted wreathed in poppies or holding poppies. Poppies also frequently adorned statues of Apollo , Asklepios , Pluto , Demeter , Aphrodite , Kybele and Isis , symbolizing nocturnal oblivion. [4] Islamic Societies (500-1500 CE) As the power of the Roman Empire declined,