“But a German may drink beer; indeed, he should drink it as a true son of Germania, since Tacitus mentions specifically German cerevisia.” (Heinrich Heine, Über Ludwig Börne. Eine Denkschrift. 1840) / The Germania was praised as a libellus aureus ('golden booklet') upon its rediscovery in the fifteenth century. Following centuries saw it compared to the 'dawn' of German history, a gift of a 'benign fairy' and 'a bible'. After the collapse of the National Socialist (NS) regime, however, from the vantage of hindsight, Arnaldo Momigliano gave it high priority among 'the hundred most dangerous books ever written', and added that it was 'fortunately' not his task to speak about its influence. The influence of Tacitus' Germania spans 450 years, starting with German humanists in the sixteenth century and ending with the NS downfall in 1945. Germany as a nation-state began to exist with the declaration of the German Empire in 1871. Before then, in the absence of political unity, a common past, culture and language were called upon to substantiate the German nation. But such a cultural nation has proved elusive too: the people within the Holy Roman Empire of the German Nation lived mostly in their communities with their regional traditions and local dialects and quite unaware of 'Germany'. 'What is German history?' is therefore a difficult question.