Learn what an empire is, its characteristics, how it differs from other political entities, and examples throughout history.
An empire is a large political unit or state, usually under a single leader, that has control over extensive territories and peoples. It often consists of multiple nations, cultures, or ethnic groups ruled by one central authority, typically an emperor or empress.
While a kingdom is typically a single nation ruled by a king or queen, an empire usually consists of many kingdoms, territories, or peoples under one supreme ruler. Empires are generally larger and more complex politically.
In short, an empire is a large, powerful state made up of many different territories and peoples, ruled by a single authority that exercises centralized control over a vast area.