WEBVTT 00:00:00.523 --> 00:00:02.856 - [Narrator] In other videos when we talked about 00:00:02.856 --> 00:00:04.902 the various Chinese empires, 00:00:04.902 --> 00:00:07.738 we talk about the Song dynasty in particular 00:00:07.738 --> 00:00:12.269 as a time of significant technological innovation. 00:00:12.269 --> 00:00:14.945 And here are just some of the examples that we talk about, 00:00:14.945 --> 00:00:18.710 most notably gunpowder, movable block print, 00:00:18.710 --> 00:00:21.859 you have block printing emerge during the Tang dynasty 00:00:21.859 --> 00:00:26.191 but during the Song dynasty, it gets perfected 00:00:26.191 --> 00:00:28.459 and it becomes more efficient with movable block print. 00:00:28.459 --> 00:00:31.315 You have the compass being perfected, 00:00:31.315 --> 00:00:34.904 especially for naval use, the boats being perfected, 00:00:34.904 --> 00:00:38.059 you see this reinvigoration, really the high point 00:00:38.059 --> 00:00:39.524 of the Chinese civil service, 00:00:39.524 --> 00:00:42.339 you see the emergence of Neo-Confucianism. 00:00:42.339 --> 00:00:44.811 But one question is well what allowed 00:00:44.811 --> 00:00:46.852 all of this innovation to take place? 00:00:46.852 --> 00:00:51.117 And also what allowed for the stability of the Song dynasty? 00:00:51.117 --> 00:00:53.109 When you look at it on the timeline like this, 00:00:53.109 --> 00:00:56.387 that's covering over 2,000 years, 00:00:56.387 --> 00:00:57.586 it might not look that long 00:00:57.586 --> 00:00:59.235 but when you actually think about it this is 00:00:59.235 --> 00:01:03.152 over 300 years of dynastic rule by one dynasty. 00:01:04.360 --> 00:01:06.987 Now it is split in the middle between the Northern Song 00:01:06.987 --> 00:01:10.997 and the Southern Song, that happens in 1127, 00:01:10.997 --> 00:01:12.580 we'll talk about that in a little bit. 00:01:12.580 --> 00:01:13.697 But for the most part, 00:01:13.697 --> 00:01:17.709 it is a very prosperous time for China. 00:01:17.709 --> 00:01:20.410 The population actually grows 00:01:20.410 --> 00:01:25.099 from roughly 50 million people during the Tang dynasty, 00:01:25.099 --> 00:01:29.277 to, it is estimated, 100 million people by 00:01:29.277 --> 00:01:33.859 the Northern Song dynasty and eventually keeps growing 00:01:33.859 --> 00:01:36.625 so that by the time we get to the Ming dynasty, 00:01:36.625 --> 00:01:40.130 we have a population of about 200 million people. 00:01:40.130 --> 00:01:41.979 So what are the things that allows 00:01:41.979 --> 00:01:45.302 for that population explosion, really? 00:01:45.302 --> 00:01:49.297 Well one thing you can imagine is food is very important, 00:01:49.297 --> 00:01:52.544 and it's during this time period that 00:01:52.544 --> 00:01:55.786 the Song dynasty is able to leverage a more robust 00:01:55.786 --> 00:02:00.057 rice seed from Southeast Asia that allows it 00:02:00.057 --> 00:02:02.378 to feed many, many more people. 00:02:02.378 --> 00:02:04.882 And so this obviously allows a population growth, 00:02:04.882 --> 00:02:07.065 but any time you're able to feed people, 00:02:07.065 --> 00:02:08.444 and there's more prosperity, 00:02:08.444 --> 00:02:12.177 you're going to have a more stable empire. 00:02:12.177 --> 00:02:14.813 Now another major input into prosperity 00:02:14.813 --> 00:02:16.913 and the stability of empires 00:02:16.913 --> 00:02:18.830 is the notion of trade. 00:02:19.709 --> 00:02:22.777 And China had always many river systems, 00:02:22.777 --> 00:02:26.329 which helped facilitate agriculture and trade. 00:02:26.329 --> 00:02:31.313 But as you get into the Sui dynasty, right over here, 00:02:31.313 --> 00:02:34.954 you have the completion of the Grand Canal, 00:02:34.954 --> 00:02:38.871 which is even today the largest man-made canal. 00:02:40.261 --> 00:02:43.110 It stretches from Beijing to Hangzhou and actually goes 00:02:43.110 --> 00:02:45.872 beyond that and has other tributaries 00:02:45.872 --> 00:02:48.235 and that connected with the existing river systems 00:02:48.235 --> 00:02:50.920 allowed for a lot of trade to happen, 00:02:50.920 --> 00:02:54.649 especially as we get into the Tang and Song dynasties. 00:02:54.649 --> 00:02:56.836 Now the Song dynasty in particular, 00:02:56.836 --> 00:03:00.360 you have the pound lock being invented, 00:03:00.360 --> 00:03:03.386 which allows for easier travel across waterways 00:03:03.386 --> 00:03:05.850 when you have a change in the level of water. 00:03:05.850 --> 00:03:08.718 The pound lock is still the standard technology used 00:03:08.718 --> 00:03:11.301 in canals throughout the world. 00:03:12.350 --> 00:03:15.933 You also have the first use of paper money. 00:03:17.348 --> 00:03:20.289 This is a big deal. We use paper money today. 00:03:20.289 --> 00:03:22.743 Our ability to have transactions in our society 00:03:22.743 --> 00:03:25.234 are not dependent on our ability to mine 00:03:25.234 --> 00:03:27.712 for gold or silver or copper. 00:03:27.712 --> 00:03:28.970 And one of the things that allowed 00:03:28.970 --> 00:03:31.212 for paper money to even be used 00:03:31.212 --> 00:03:34.038 was this notion of block printing, 00:03:34.038 --> 00:03:37.807 and block printing with movable type in particular. 00:03:37.807 --> 00:03:40.974 Once again, a Song dynasty innovation. 00:03:41.824 --> 00:03:45.157 Now as I mentioned, as we get into 1127, 00:03:46.134 --> 00:03:50.299 you have conquerors from the north, in particular the Jin, 00:03:50.299 --> 00:03:53.044 who are able to conquer Northern China. 00:03:53.044 --> 00:03:55.473 They caused the Song to move their capital 00:03:55.473 --> 00:03:57.996 from Kaifeng in the north, 00:03:57.996 --> 00:04:00.516 to Hangzhou in the south. 00:04:00.516 --> 00:04:03.364 Here you see Hangzhou is a major southern terminal 00:04:03.364 --> 00:04:05.145 of the Grand Canal. 00:04:05.145 --> 00:04:09.286 And even though the Northern Song had to move 00:04:09.286 --> 00:04:12.297 and essentially become the Southern Song dynasty, 00:04:12.297 --> 00:04:14.167 you continue to have that prosperity 00:04:14.167 --> 00:04:17.467 for roughly another 150 years and once again, 00:04:17.467 --> 00:04:19.398 this comes from this meritocracy 00:04:19.398 --> 00:04:21.022 from the civil service system. 00:04:21.022 --> 00:04:23.909 This abundance of food, this stability from 00:04:23.909 --> 00:04:26.428 having the dynastic rule, the trade, the money, 00:04:26.428 --> 00:04:29.297 all of these technological advances, 00:04:29.297 --> 00:04:32.673 which make the Song dynasty one of the notable periods 00:04:32.673 --> 00:04:34.256 of Chinese history.