Dewey Decimal Classification - Children's Encyclopedia (Ages 8-11) The Dewey Decimal Classification (DDC) is a system for organizing the contents of a library. It is commonly known as the Dewey Decimal System. It helps people find nonfiction books on any subject in the library.
Beijing â The Capital of China. Urban Population: 18.8 million. As the capital of China, Beijing ranks as the top on the major cities in China. Reputed as the worldâs historical city and one of the top seven ancient capitals in China, Beijing has been the capital of China since Lioa Dynasty, 800 years till now.
The largest city by population in China is Shanghai. Home to 23 million people, Shanghai is also the worldâs most populous city. Located in the Yangtze River Delta in East China, Shanghai has an area of 2,448 square miles and a density of about 9,400 people per square mile.