never formulated laws. Apart from a rudimentary three-age system, the stages of history, such as are found in Lubbock, Tylor, Morgan, Marx and others, are yet unformulated. Proto-anthropology Eriksen and Nielsen use the term proto-anthropology to refer to near-anthropological writings, which contain some of the criteria for being anthropology, but not all. They classify proto-anthropology as being "travel writing or social philosophy", going on to assert "It is only when these aspects ... are fused, that is, when data and theory are brought together, that anthropology appears." This process began to occur in the 18th century of the Age of Enlightenment. Classical Age Many anthropological writers find anthropological-quality theorizing in the works of Classical Greece and Classical Rome; for example, John Myres in Herodotus and Anthropology (1908); E. E. Sikes in The Anthropology of the Greeks (1914); Clyde Kluckhohn in Anthropology and the Classics (1961), and many others. An equally long list may be found in French and German as well as other languages. Herodotus Herodotus was a 5th-century BC Greek historian who set about to chronicle and explain the Greco-Persian Wars that transpired early in that century. He did so in a surviving work conventionally termed the History or the Histories. His first line begins: "These are the researches of Herodotus of Halicarnassus ...." The Achaemenid Empire, deciding to bring Greece into its domain, conducted a massive invasion across the Bosphorus using multi-cultural troops raised from many different locations. They were decisively defeated by the Greek city-states. Herodotus was far from interested in only the non-repeatable events. He provides ethnic details and histories of the peoples within the empire and to the north of it, in most cases being the first to do so. His methods were reading accounts, interviewing witnesses, and in some cases taking notes for himself. These "researches" have been considered anthropological since at least as early as the late 19th century. The title, "Father of History" (pater historiae), had been conferred on him probably by Cicero. Pointing out that John Myres in 1908 had believed that Herodotus was an anthropologist on a par with those of his own day, James M. Redfield asserts: "Herodotus, as we know, was both Father of History and Father of Anthropology." Herodotus calls his method of travelling around taking notes "theorizing". Redfield translates it as "tourism" with a scientific intent. He identifies three terms of Herodotus as overlapping on culture: