The term "Second Reich" is commonly used to refer to the period of German history from 1871 to 1918, during which time Germany was ruled by the Kaiser and his government. However, there are a number of other terms that can be used to describe this era in German history. Some historians refer to it as the Hohenzollern Empire, named after the ruling family of the time. Others refer to it as the Kaiserreich or the Imperial period. Still others use the term Wilhelmine Germany, named after Kaiser Wilhelm II, who was the leader of the country during much of this time period. No matter which term one uses, it is clear that this was a significant moment in German history, marked by economic growth, military expansion, and the rise of nationalism.