Panhellenic Literally "all Greek"; of or relating to all of Greece or the area where ancient Greek culture dominated.
Patrice Lumumba Pan-Africanist and first prime minister of the independent Congo in 1960; he was killed in January 1961 by troops loyal to his opponent Joseph Mobutu.
Pax Mongolica The peace created by the extension of Mongol rule across Eurasia.
perestroika Economic reforms begun by Mikhail Gorbachev, the last leader of the USSR.
Pierre de Coubertin French citizen who re-established the Olympic games in 1896.
Plaza de Mayo Public square in Buenos Aires where Argentinian mothers protested against the government jailing or killing their children without due process.
Potosi Andean city where the Spanish required Native Americans to mine silver for global trade; one of the largest world cities in the sixteenth century.
Prince Vladimir Ruler of Kievan Russia; converted to Christianity in 988 CE when he married the sister of the Byzantine emperor.