Browse the Concise Encyclopedia
- possum
- post-and-beam system
- post-impressionism
- post-traumatic stress disorder (ptsd)
- postal system
- poster
- postmodernism
- poststructuralism
- potala palace
- potash
- potassium
- potassium-argon dating
- potato
- potato beetle
- potential energy
- potlatch
- potsdam conference
- pottery
- poultry farming
- pound
- powder metallurgy
- power
- power, charles gavan
- powhatan
- powwow
- powys
- poxvirus
- practical learning school
- practical reason
- prado museum
- praeneste
- praetor
- praetorian guard
- pragmatic sanction
- pragmatic sanction of bourges
- pragmatics
- pragmatism
- prague spring
- prague, defenestration of
- prairie
- prairie chicken
- prairie dog
- prairie school
- prajapati
- prajnaparamita
- prakriti and purusha
- prasada
- pratitya-samutpada
- pratt institute
- pratyaya
- pratyeka-buddha
- pravda
- praxiteles
- prayer
- prayer wheel
- pre-raphaelites
- pre-socratics
- preakness stakes
- precambrian time
- precast concrete
- precession
- precipitation
- precisionism
- predation
- predestination
- predicate calculus
- preeclampsia and eclampsia
- preemption
- prefabrication
- prefect
- pregnancy
- prehistoric religion
- prelude
- premature birth
- premenstrual syndrome (pms)
- prensa, la
- preparatory school
- preparedness movement
- prerogative court
- presbyterianism
- preschool education
- prescription
- prescriptivism
- preservative
- president
- prespa, lake
- pressburg, treaty of
- pressure
- pressure gauge
- prester john
- prestressed concrete
- preventive medicine
- priam
- priapus
- pribilof islands
- price
- price discrimination
- price index
- prickly pear
- priene