Most 19th- and 20th-century lexicons define a historian as a person who studies and writes about history; Grimm calls a Historiker (historian) a Geschichtsforscherund -schreiber (researcher and writer of history) [1] (see Historiography). There have been writers dealing with historical events since the beginning of literacy in Europe (Homer and Moses, or Herodotus, Thucydides, Livy, Polybius, and Tacitus). Only since the late Enlightenment, however, …