The invention of power Popes, kings, and the birth of the West

Political scientist Bueno de Mesquita (The Dictator's Handbook) delivers an intriguing, data-based analysis of how three overlooked 12th-century treaties between the Catholic Church and European monarchs set the stage for people in the West to become "freer, richer, more tolerant, more innovative, and happier than people just about anywhere else in the world." Debunking claims that this "Western exceptionalism" is the by-product of Europeans' superior culture or genetics, Bueno de Mesquita traces its roots to the Concordant of Worms, signed by Pope Calixtus II and Holy Roman Emperor Henry V in 1122, and two similar agreements signed by the kings of England and France in 1107. According to Bueno de Mesquita, these agreements, which reformed the "haphazard, highly variable procedures for electing bishops," forced essential adaptations by both institutions, fostered economic growth, empowered ordinary people, and laid fertile ground for democracy. Extensive analysis of the church's hierarchical structure bolsters his theory, as do charts and graphs that illustrate some surprising insights--for example, regions covered by the concordants were likelier to form parliamentary governments in later centuries. Though Bueno de Mesquita shortchanges other factors that contributed to the rise of the West, he builds a solid case. Medieval history buffs will be impressed. (Jan.)