This image shows a map of the world "according to the Greek poet Homer." In his Iliad, the world is a round plain encircled by a great river known as Oceanus, The sky is a great concave roof propped up by pillars that the mighty Atlas upholds. On the largte, flat disc of the earth is a sort of belt or zone that includes the lands of which he was aware. To the north are milk-fed nomads. Near the banks of Oceanus are the pygmies. Mentioned are Thracia, Libya, Phryges, Pontus Pelagus, and others. Homer's Odyssey includes many more names, including Scylla and Charybdis.