Encyclopedias, Almanacs, Transcripts, and Maps
- Sovnarkom
- Soyuz Faction
- Spaatz, Carl A.
- Space Program, Military Involvement in the
- Space Programs
- Space Race
- Spain, Art in
- Spalding, Simon
- Spanish America
- Spanish American Independence
- Spanish and Portuguese
- Spanish blanks conspiracy
- Spanish Borderlands
- Spanish Civil War (1936–1939)
- Spanish Colonial Official's Account of Triangular Trade with England (c. 1726)
- Spanish Colonies
- Spanish Conquistadors
- Spanish Conspiracy
- Spanish Empire
- Spanish Empire