History of Germany during World War I
In November 1918, with internal revolution, a stalemated war, Bulgaria and the Ottoman Empire suing for peace, Austria-Hungary falling apart from multiple ethnic tensions, and pressure from the German high command, the Kaiser and all German ruling princes abdicated. On 9 November 1918, the Social Democrat Philipp Scheidemann proclaimed a Republic, in cooperation with the business and middle classes, not the revolting workers. The new government led by the German Social Democrats called for and received an armistice on 11 November 1918; in practice it was a surrender, and the Allies kept up the food blockade to guarantee an upper hand. The war was over; the history books closed on the German Empire. It was succeeded by the democratic, yet flawed, Weimar Republic.
German State Crown
In 1871 a design and a model for a new state crown were created to reflect the new German Empire. The model was based upon the Crown of the Holy Roman Empire and was kept in the Hohenzollern museum at Schloss Monbijou in Berlin, until it disappeared during World War II. It has never re-surfaced. No final crown was ever made. However, the design was used as a heraldic device for the German Kaisers from 1871 until Kaiser Wilhelm's abdication in 1918. The crown was most used as an heraldic symbol, in the German coat of arms and the Emperor's personal standard.