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 most populated city in the world is Tokyo Japan with over 30million. Shanghai has a population of over 20 million. Approximately 17 million permanent residents and more than 3 million temporary residents. Beijing is the second most populous city in China. Wikipedia lists (density by people per sq. km): 1. Shanghai 2.