books.google.no - The second volume describes the formation, in the sixth century BC, of the earliest multi-national empire, its administration, its confrontation with Greece, and its eventual dissolution under the impact of Alexander's conquest of Iran in 331 BC. This was a time of great importance in the history of...http://books.google.no/books/about/The_Cambridge_History_of_Iran.html?hl=no&id=kMLKgzj5afMC&utm_source=gb-gplus-shareThe Cambridge History of Iran