Standard Chinese is a modern standard form of Mandarin Chinese that was first codified during the republican era (1912‒1949). It is designated as the official language of mainland China and a major language in the United Nations, Singapore, and Taiwan. It is largely based on the Beijing dialect. Standard Chinese is a pluricentric language with local standards in mainland China, Taiwan and Singapore that mainly differ in their lexicon. Hong Kong written Chinese, used for formal written communication in Hong Kong and Macau, is a form of Standard Chinese that is read aloud with the Cantonese reading of characters.
A poster outside a high school in Yangzhou urges people to "Speak Putonghua to welcome guests from all around, use the language of the civilized to give your sincere feelings".
Simplified Chinese characters
Simplified Chinese characters are one of two standardized character sets widely used to write the Chinese language, with the other being traditional characters. Their mass standardization during the 20th century was part of an initiative by the People's Republic of China (PRC) to promote literacy, and their use in ordinary circumstances on the mainland has been encouraged by the Chinese government since the 1950s. They are the official forms used in mainland China and Singapore, while traditional characters are officially used in Hong Kong, Macau, and Taiwan.
Excerpt of initial 1935 simplifications promulgated by the Republic of China Department of Education in 1935, later retracted in 1936
The slogan 战无不胜的毛泽东思想万岁!; Zhàn wúbù shèng de Máo Zédōng sīxiǎng wànsuì!; 'Long live the invincible Mao Zedong Thought!' written in simplified characters on Xinhua Gate in Beijing