At present, Xuzhou has excavated eight Han tombs

Liu Bang and Empress Lu were buried together in Changling, located in the north of Sanyi Village, Yaodian Town, Xianyang City, Shaanxi Province. There were two mausoleums in Changling. Liu Bang's mausoleum was in the west, and Empress Lu's mausoleum was in the east. The mausoleum was huge. The mausoleum was square, with a side length of 780 meters and a circumference of 3120 meters. Cultural relics belonging to the Western Han Dynasty had been unearthed near the mausoleum, such as written tiles and painted infantry figurines. Changling was the first imperial tomb built in the Han Dynasty. It was also the tomb of Liu Bang and Empress Lu. Changling was excavated and listed as a national key cultural relic protection unit. There was also a precious national treasure cultural relic in the mausoleum, which was the imperial jade seal used by Empress Lu. The exact location of Changling and the burial items in the mausoleum could no longer be verified.

As a fan of online literature, I don't have the ability to access the Internet to find out if Xuzhou has the largest pirated book market. But I can give you some general information about the pirated book market. The pirated book market usually referred to an area or place where books were illegally sold or pirated. These markets may exist in the city center or in remote corners, where fraud or criminal activity may occur. In China, the pirated book market was more common, especially in the peripheral areas of some cities. Some pirated booksellers could even bypass copyright protection laws through underground transactions. Therefore, buying pirated books may be risky because they may have typos, missing pages, wrong labels, etc., and the content may have been tampered with by pirates. If you need to buy genuine books, we recommend you to buy them from a legitimate bookstore or publishing house to ensure the quality and copyright protection of the books.

The Ming Tombs include Changling, Xianling, Jingling, Yuling, Maoling, Tailing, Kangling, Yongling, Zhaoling, Dingling, Qingling, Deling and Siling.

The Ming Tombs were the general name for the imperial tombs of the 13 emperors after the Ming Dynasty moved its capital to Beijing. There were Changling (Chengzu), Xianling (Renzong), Jingling (Xuanzong), Yuling (Yingzong), Maoling (Xianzong), Tailing (Xiaozong), Kangling (Wuzong), Yongling (Shizong), Zhaoling (Muzong), Dingling (Shenzong), Qingling (Guangzong), Deling (Xizong) and Siling (Yizong).

The Ming Tombs were the tombs of the 13 emperors of the Ming Dynasty. They were located at the foot of the Yanshan Mountain in the Changping District of Beijing. The Ming Tombs include Dingling, Changling, Zhaoling, Kangling, Jingling, Xianling, Yuling, Maoling, Tailing, Yongling, Qingling, Deling and Siling. Among them, Ding Mausoleum was the only mausoleum with an open underground palace. The other mausoleums could be seen from the outside, but the doors were tightly shut and no one could enter.

The Ming Tombs include Changling, Xianling, Jingling, Yuling, Maoling, Tailing, Kangling, Yongling, Zhaoling, Dingling, Qingling, Deling and Siling.

The Ming Tombs were the tombs of 13 emperors of the Ming Dynasty. They were located at the foot of Tianshou Mountain in the northern Changping District Beijing City. Among them, Dingling was the tomb where Emperor Wanli and his two empresses were buried together. The Dingling Underground Palace was the only open underground palace in the Ming Tombs. It preserved the sarcophagi of Emperor Chengzu and the Empress, as well as some daily necessities and sacrificial items. The walls of the underground palace of the Dingling Mausoleum were engraved with patterns of dragons, phoenixes, and clouds, symbolizing the nobility and power of the royal family. The Ming Tombs were the largest existing imperial mausoleum complex in China and even the world, with the largest number of mausoleums of emperors and empresses. It was announced by the State Council as the first batch of key cultural relics to be protected in the country.

The Ming tombs include Changling, Xianling, Jingling, Yuling, Maoling, Tailing, Kangling, Yongling, Zhaoling, Dingling, Qingling, Deling and Siling.

The Ming Dingling Mausoleum was the tomb of the 13th Emperor of the Ming Dynasty, Shenzong Zhu Yijun, and Empress Xiaoduan and Empress Xiaojing. It was located at the eastern foot of Dayu Mountain in Changping District, Beijing City. It was built in 1584 and took six years to complete. The general layout of the Ming Dingling Mausoleum's ground buildings was circular in front and back, which contained the symbolic meaning of the ancient Chinese philosophical concept of "round sky and square earth". The cemetery covered an area of 180,000 square meters, including a wide courtyard, a tall treasure city, and three white marble stone bridges. The Ding Tomb was one of the three largest mausoleums of the Ming Dynasty. From 1956 to 1958, archaeological excavation was carried out. It is the only imperial tomb of the Ming Dynasty that has been excavated so far. The underground palace of Dingling Mausoleum was also open for tourists to visit.

Liu Ruyu came to Xuzhou. Liu Ruyu was the director of the Center for Liver Disease at Beijing Ditan Hospital. He was assigned to the Third Department of Liver Disease at Xuzhou City Seventh People's Hospital. Beijing Ditan Hospital's Liver Disease Center was the national center for the diagnosis and treatment of difficult and critical liver diseases. Liu Ruyu and his team carried out the diagnosis and treatment of difficult and critical liver diseases in Xuzhou Hospital, providing full-cycle and full-node diagnosis and treatment services for patients with liver diseases. Therefore, Liu Ruyu had already come to Xuzhou and participated in medical work.