China was not originally monolithic. China was populated by people who spoke a large variety of languages that were separated by historians into four groups: Sino-Tibetan, Austroasiatic, Tai-Kadai, and Miao-Yao. Sino-Tibetan consists of the eight main languages in China today: Mandarin, and seven of its close relatives. It is speculated that Sino-Tibetan originated in North China, and Austroasiatic, Tai-Kadai, and Miao-Yao were the native languages in South China. Sino-Tibetan spread into South China when a writing system was created by North China, and was spread using canals connecting the Yangtze and Yellow rivers. The first three dynasties in China were mainly in the north, and not until the Qin Dynasty in 221 BC did China unify. Prior to this point in history, many North Chinese considered South Chinese people to be barbaric. China was able to dominate East Asia with their strong Dynasties and languages. Language spread unified China when Mandarin was developed and spread throughout the country. North China was also able to dominate East Asia with their advanced innovations and technology.
Since China opened for liberalisation in economy modified its way of governence towords business...It has accumulated huge Foreign Direct investments along the years.And it the most sought for hardware outsourcing destination....Consequently Chinese government has more funds to develop its infrastructure.
And Honk Kong is now also part of China adding to its economical strength....