Street Graffiti

Government responses
Asia
In China, graffiti began with Mao Zedong in the 1920s who used revolutionary slogans and paintings in public places to galvanise the country's communist revolution. Mao holds the record for the longest piece of graffiti, which contains 4000 characters criticising his teachers and the state of Chinese society.
In Hong Kong, Tsang Tsou Choi was known as the King of Kowloon for his calligraphy graffiti over many years, in which he claimed ownership of the area. Some of his work is now officially preserved.