Unification of Germany By jplaza2 Mar 3, 1861 Bismarck appointed as head of Prussian cabinet by William I Built Prussian army into powerful war machine Mar 3, 1864 Denmark surrenders to Prussia and Austria Mar 3, 1866 Seven Weeks' War Mar 3, 1867 Several North German states united with Prussia to form North German confederation asdasdasd Mar 3, 1870 Franco Prussian War Mar 3, 1871 Declaration of the formation of the German empire including all German states except Austria