In English the word peace is occasionally used as a farewell, especially for the dead, as in the phrase rest in peace. Wolfgang Dietrich, in his research project which led to the book The Palgrave International Handbook of Peace Studies (2011), maps the different meanings of peace in different languages and regions across the world. Later, in his Interpretations of Peace in History and Culture (2012), he groups the different meanings of peace into five peace families: Energetic/Harmony, Moral/Justice, Modern/Security, Postmodern/Truth, and Transrational, a synthesis of the positive sides of the four previous families and the society. History In ancient times and more recently, peaceful alliances between different nations were codified through royal marriages. Two examples, Hermodike I (c. 800 BC) and Hermodike II (c. 600 BC) were Greek princesses from the house of Agamemnon who married kings from what is now Central Turkey. The union of Phrygia / Lydia with Aeolian Greeks resulted in regional peace, which facilitated the transfer of ground-breaking technological skills into Ancient Greece; respectively, the phonetic written script and the minting of coinage (to use a token currency, where the value is guaranteed by the state). Both inventions were rapidly adopted by surrounding nations through further trade and cooperation and have been of fundamental benefit to the progress of civilization. Throughout history, victors have sometimes used ruthless measures to impose peace upon the vanquished. In his book Agricola, the Roman historian Tacitus includes eloquent and vicious polemics against the rapacity and greed of Rome. One, that Tacitus says is by the Caledonian chieftain Calgacus, ends with: Auferre trucidare rapere falsis nominibus imperium, atque ubi solitudinem faciunt, pacem appellant. (To ravage, to slaughter, to usurp under false titles, they call empire; and where they make a desert, they call it peace. — Oxford Revised Translation). Discussion of peace is therefore at the same time a discussion on its form.. Is it simply the absence of mass organized killing (war), or does peace require a particular morality and justice? (just peace). A peace must be seen at least in two forms: A simple silence of arms, absence of war. Absence of war accompanied by particular requirements for the mutual settlement of relations, which are characterized by terms such as justice, mutual respect, respect for law and good will. More recently, advocates for radical reform in justice systems have called for a public policy adoption of non-punitive, non-violent