As a famous historical and cultural city, Shanghai boasts profound contemporary urban culture background and numerous historical heritage sites. Meanwhile, Shanghai is also China's important center of economy, transport, science and technology, industry, finance, convention & exhibition and shipping, one of the biggest metropolis cities worldwide in terms of size and area. In 2014, Shanghai's GDP ranked top in China, and second in Asia.
In May 2016, with the consent of the State Council, the National Development and Reform Commission and the Ministry of Housing and Urban jointly issued the "Chengdu-Chongqing Urban Agglomeration Development Planning" guidance document, which decides to position Chengdu as a national central city.
Chengdu has a long-profound history and splendid culture. It has been the national historical and cultural city, the best tourist city in China and the starting place of southern Silk Road. More than 2600 years fortification history has gave birth to the Dujiangyan Irrigation System, Temple of Marquis, Du Fu's Thatched Cottage, Jinsha Sites and many other historical sites
Chengdu city was built around the fifth century BC and in Western Han Dynasty it has become one of China's six major cities. During the Three Kingdoms period it was the capital of Shu Kingdom. In the Northern Song Dynasty, Chengdu people jointly issued the world's earliest paper money named as ‘Jiaozi’ and the government established the world's first deposit management bank “Jiaoziwu”.