Xuzhou, known as Pengcheng in ancient times, is a major city in and the fourth largest prefecture-level city of Jiangsu Province, China. Its population was 8,577,225 at the 2010 census whom 2,623,066 lived in the built-up (or metro) area made of Quanshan, Gulou, Yunlong and Tongshan districts.[1] It is known for its role as a transportation hub in northwestern Jiangsu, as it has expressways and railway links connecting directly to the provinces of Henan and Shandong, the neighboring port city of Lianyungang, as well as the economic hub Shanghai.