Left-wing

#### Definition
Left-wing politics support social equality and egalitarianism, opposing hierarchy.

#### Core Principles
- Reducing inequalities through reform or revolution.

#### Historical Origins and Development
From French Revolution; evolved with socialism and civil rights.

#### Key Thinkers or Figures
- Karl Marx, Vladimir Lenin.

#### Notable Variants
- Social democracy, communism.

#### Criticisms or Controversies
Internal divisions on farmers, environment, nationalism.