What you see depicted here is one of the first books that ever printed, the Diamond Sutra, during the Tang Dynasty. Now after the Tang falls in 907, you have, on a historical time scale, a relatively brief period of chaos again, about 50, I guess exactly 53 years, where you get this Five Dynasties and Ten Kingdoms period, but then China gets reunified under the Song Dynasty. And the Song Dynasty is able to, on some level, pick up where the Tang Dynasty left off. One thing that happens as we get into the late Tang Dynasty is that there's pushback against Buddhism that we talk about in other videos, and you see Neo-Confucianism begin to take hold, and it really takes hold under the Song Dynasty that we talk about in other videos. Now the Song Dynasty is also known as a time of really putting a lot of energy into the civil service and the bureaucracy, and it really being very meritocratic, based on some of these Neo-Confucian ideals. It's also a time of significant technological innovation. The compass, which has use as early as the Han Dynasty, but it really gets into its fairly evolved or modern form, especially for maritime use during the Song Dynasty.