The Seleukids, the easternmost of the Greek-speaking dynasties which succeeded Alexander the Great, were long portrayed by historians as inherently weak and doomed to decline after the death of their remarkable first king, Seleukos (281 BC). And yet they succeeded in ruling much of the Near and Middle East for over two centuries, overcoming problems of a multi-ethnic empire. In this book an international team of young, established scholars argues that in the decades after Seleukos the empire developed flexible structures that successfully bound it together in the face of a series of catastrophes. The strength of the Seleukid realm lay not simply in its vast swathes of territory, but rather in knowing how to tie the new, frequently non-Greek, nobility to the king through mutual recognition of sovereignty.