
Country: China Changzhou was once known by the names Yanling, Lanling, and Jinling, and it is the birthplace of Zhou Youguang, creator of the pinyin romanization system. This prefecture-level city in southern Jiangsu stretches along the southern bank of the Yangtze River, between Nanjing, Zhenjiang, Wuxi, and Zhejiang. Its municipality had 5,278,121 residents in the 2020 census.
