(i) In the 1800s, nationalist feelings were strong in the hearts of the middle-class Germans.
(ii) They united in 1848 to create a nation-state out of the numerous German states.
(iii) Prussia soon became the leader of German unification movement.
(iv) Chief Minister Otto von Bismarck was the architect of the process with support from Prussian army and Prussian bureaucracy.
(v) The unification process was completed after Prussia won wars with Austria, Denmark and France over seven years time.
(vi) In January 1871, the Prussian king, William I, was proclaimed the German Emperor in a ceremony held at Versailles.