The Prussian King William I was proclaimed the German Emperor in 1870.
Answer:
The Prussian King William I was proclaimed the German Emperor in 1870 .
Explanation
Three wars over seven years with Austria, Denmark and France ended in Prussian victory which led to competition in the process of German unification. In January 1871 , the Prussian king, William I , was proclaimed German Emperor in a ceremony held at Versailles.