linguistic:translation, structural:reformatting
Rise of Cantonese

The port city of Guangzhou lies in the middle of Pearl River Delta, with access to the interior via the Xi, Bei, and Dong rivers, which all converge at the delta. It has been the economic centre of the Lingnan region since Qin times, when it was an important shipbuilding centre. By 660, it was the largest port in China, part of a trade network stretching as far as Arabia. During the Southern Song, it also became the cultural centre of the region. Like many other Chinese varieties it developed a distinct literary layer associated with the local tradition of reading the classics. The Guangzhou dialect (Cantonese) was used in the popular Yuèōu, Mùyú and Nányīn folksong genres, as well as Cantonese opera. There was also a small amount of vernacular literature, written with Chinese characters extended with a number of non-traditional characters for Cantonese words.

Guangzhou became the centre of rapidly expanding foreign trade after the maritime ban was lifted, with the British East India Company establishing a chamber of commerce in the city in 1715. The ancestors of most of the Han Chinese population of Hong Kong came from Guangzhou after the territory was ceded to Britain in 1842. As a result, Hong Kong Cantonese, the most widely spoken language in Hong Kong and Macau, is an offshoot of the Guangzhou dialect. The popularity of Cantonese-language media, Cantopop and the Cinema of Hong Kong has since led to substantial exposure of Cantonese to China and the rest of Asia. On the mainland, the national policy is to promote Standard Chinese, which is also the medium of instruction in schools. The place of local Cantonese language and culture remains contentious. In 2010, a controversial proposal to switch some programming on Guangzhou local television from Cantonese to Mandarin was abandoned following widespread backlash accompanied by public protests.