The Golden Bull of 1356 (German: Goldene Bulle, Latin: Bulla Aurea) was a decree issued by the Imperial Diet at Nuremberg and Metz (Diet of Metz (1356/57)) headed by the Emperor Charles IV which fixed, for a period of more than four hundred years, important aspects of the constitutional structure of the Holy Roman Empire. It was named the Golden Bull for the golden seal it carried.

In this vivid fifty-year history of Germany from 1871-1918—which inspired events that forever changed the European continent—here is the story of the Second Reich from its violent beginnings and rise to power to its calamitous defeat in the First World War. Before 1871, Germany was not yet nation but simply an idea. Its founder, Otto von Bismarck, had a formidable task at hand. How would he bring thirty-nine individual states under the yoke of a single Kaiser? How would he convince proud Prussians, Bavarians, and Rhinelanders to become Germans? Once united, could the young European nation wield enough power to rival the empires of Britain and France—all without destroying itself in the process? In this unique study of five decades that changed the course of modern history, Katja Hoyer tells the story of the German Empire from its violent beginnings to its calamitous defeat in the First World War. This often startling narrative is a dramatic tale of national self-discovery, social upheaval, and realpolitik that ended, as it started, in blood and iron.

Napoleon has escaped from Elba – the Hundred Days have begun.

'Of the "Great Powers" that dominated Europe from the eighteenth to the twentieth centuries, Prussia is the only one to have vanished ... Iron Kingdom is not just good: it is everything a history book ought to be ... The nemesis of Prussia has cast such a long shadow that German historians have tiptoed around the subject. Thus it was left to an Englishman to write what is surely the best history of Prussia in any language' Sunday Telegraph