Chang'an
Chang'an was the capital of many different dynasties in ancient times. Thirteen dynasties built their capital cities here, including the Qin Dynasty, and it was the world’s largest serving capital city with 1100 years of history. The trade here was used by the silk roads in China. Many of these items that were traded were luxurious. Some items that were traded was salt, lapis lazuli, copper, and tin. Trade in this region was very successful due to the amount of cities that participated. The population in Chang'an reached a population of over as million. The more people, the more trade.