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.
Top 10 Largest Cities in China. According to the related data and statistics of the 6th nationwide population census, the following cities are the Top 10 largest cities in China by urban resident population (exclude suburban, county and county-level city) in China. No. 1 Shanghai.
Xi'an Xi'an, capital of Shaanxi Province, is the largest city in northwest China, with an urban population of 2.72 million. Originally known as Chang'an, Xi'an is a famous ancient city in China and was the starting point of the ancient Silk Road.