The stage that is not one of the five stages in Plato's cycle of government is Socialism, in which all political and economic activity are controlled by a community.
Plato's stages, as described in his works, typically include:
- Kingship or Aristocracy
- Timocracy
- Oligarchy
- Democracy
- Tyranny
Socialism, as a distinct system of governance and economic organization, is not part of Plato’s framework.