Between the 11th and 14th centuries, China was, by nearly all accounts, the most advanced civilization in the world. This site from Columbia University's Asia for Educators, profiles Song Dynasty China, starting with an exegesis of the Beijing Qingming Scroll, which has been called "China's Mona Lisa." From there, readers may peruse various topics. For instance, the Economic Revolution section presents six subsections: Population Boom, Commercialization, Paper Money, Iron and Steel, Textiles and Silk, and Ceramics. Other sections, such as Technology, Cities, Confucianism, and Outside World, are equally rich with information about this most complex and cultured of historical epochs. For educators introducing students to world history, this site is a welcome and fascinating resource.