𝐆𝐞𝐫𝐦𝐚𝐧 𝐄𝐦𝐩𝐢𝐫𝐞 German Empire also referred to as Imperial Germany, was the period of the German Empire from the unification of Germany in 1871 until the November Revolution in 1918, when the German Empire changed its form of government from a monarchy to a republic. Timeline: 1908-1915