<Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (October 2012) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (October 2012) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Td> Irano - Roman floor mosaic detail from the palace of Shapur I at Bishapur . </Td> </Tr> </Table> <Tr> <Td> Irano - Roman floor mosaic detail from the palace of Shapur I at Bishapur . </Td> </Tr>

What is the most important concept of greek art