Conflict between Poland and Lithuania after World War I (may 1919 – october 1920)

Water polo at the 1920 Summer Olympics — water polo at the Olympics

Korenizatsiya — integration of the non-Russian peoples to the Soviet Union by promoting their languages and cultures

Football at the 1920 Summer Olympics — 1920 edition of the association football tournament during the Olympic Games

Swimming at the 1920 Summer Olympics — swimming events at the Olympics

Nakba Day — Palestinian day of commemoration

Leninism — communist ideology and state ideology of socialist states, as developed by Vladimir Lenin

1920 Summer Olympics medal table — award

Athletics at the 1920 Summer Olympics — 1920 Summer Olympic games athletics summary

1920 South American Championship — football tournament

Tennis at the 1920 Summer Olympics — Tennis at the Olympics