Pantheon: temple built in Rome by Emperor Hadrian to honor all the major gods

papier-mâché: material made of paper pulp and glue which hardens when dry

papyrus: water plant used by the ancient Egyptians, Greeks, and Romans to make a paper-like material on which to write

Parthenon: temple of Athena Parthenos, the patron goddess of Athens, located on the Athenian Acropolis

Perikles: statesman who ruled Athens in the 5th century B.C. during the period called the "Golden Age"

peristyle: enclosed courtyard or garden surrounded by columns

Persia: kingdom in the area of present-day Iran; Persia attacked Greece in 490–480 B.C. and was vanquished at the battles of Marathon and Salamis; it was later conquered by Alexander the Great

phalanx: warriors in close formation