Book excerpt: From the invention of the wheel to the mapping of the genome, technology has always been deeply intertwined with the course of human history. Now, this fascinating set explores the role technology has played in eighteen separate cultures in world history, and reveals the many ways people use technology to control their environment, express religious values, deploy political power, confer social status, and afford themselves varying degrees of pleasure, comfort, and security. Whether focusing on Egyptian pyramids or medieval cathedrals, the Mayan astronomical calendar or the internet, Technology in World History illuminates the amazing array of technologies that humans have developed to shape and give meaning to their lives.