In which year was Tongshan New District of Xuzhou built?

Xuzhou Tongshan New District was completed at 20 10. Tongshan district, located in the northwest of Jiangsu Province, was called the hometown of Da Peng in ancient times. In the 26th year of Qin Shihuang (22 BC1), Pengcheng County was established. In the eleventh year of Yongzheng in Qing Dynasty, Xuzhou was upgraded to a government, and Pengcheng County was renamed Tongshan County because there was Tongshan Island in the territory. In 20 100, the city was set up from the county seat, surrounding the urban area of Xuzhou, with a total area of 1900 square kilometers.