An empire is a large nation that has typically expanded by conquering or at least politically dominating other nations. The result is an ethnically and culturally diverse population that is effectively ruled by a particular ethnic/cultural group. The term "empire" stems from "imperium", which refers to the authority (specifically to command a Roman Army).
The chief executive of an empire often carries the title of Emperor or some variation of it. However, rule by hereditary monarchy with absolute power is not necessary for a nation to be called an empire.
- Hittite Empire
- Neo Assyrian Empire
- Persian Empire
- Macedonian Empire
- Roman Empire
- Chinese Empire (221BCE to 1916CE)
- Ottoman Empire (1299 to 1922)
- Aztec Empire
- Inca Empire
- British Empire
- German Reich (1871-1918)
- The Tsardom of Russia (1547 to 1917)
- Empire of Japan