Encyclopedias, Almanacs, Transcripts, and Maps
- place-names
- Plains Indian Wars
- Plains Indian Wars
- Planners' Preferences
- Plant Variety Protection Act (1970)
- Plantation, The
- Plantations, the Americas
- Platon (Levshin)
- Platonov, Sergei Fyodorovich
- pleasure gardens
- Plekhanov, Georgy
- Plenty Coups
- Plomer, William
- Plunket, William, 1st Baron Plunket
- Podyachy
- Poetry of the Crusades
- Poetry, U.S.
- Pogroms
- Pogroms
- Poincaré, Henri