Encyclopedias, Almanacs, Transcripts, and Maps
- Senter, Isaac
- Sentimentalism
- Separation of Church and State (France, 1905)
- Sepoy
- Sepoy Mutiny
- September 11, 2001, Terrorist Attacks
- Sepúlveda, Juan Ginés De (1490?–1574)
- Serapion Brothers
- Serbia, Relations with
- Serednyaki
- Serfdom in East Central Europe
- Serfdom in Russia
- Serfs, Emancipation of
- Sergei Sergeevich Prokofiev
- Sergei, Patriarch
- Sergius, St.
- Serle, Ambrose
- Serpents and Snakes
- Serrão, Francisco
- Service Associations