Marxism–Leninism

Marxism–Leninism is a communist ideological stream that emerged as the mainstream tendency among the Communist parties in the 1920s as it was adopted as the ideological foundation of the Communist International during the era of Joseph Stalin's leadership of the USSR.

However, in various contexts, different (and sometimes opposing) political groups have used the term "Marxism–Leninism" to describe the ideology that they claimed to be upholding.