Language Days at the United Nations seek to celebrate multilingualism and cultural diversity as well as to promote equal use of all six official languages throughout the Organization. Why April 20? The date for the Chinese day was selected from Guyu ("Rain of Millet"), which is the 6th of 24 solar terms in the traditional East Asian calendars, to pay tribute to Cangjie. Cangjie is a very important figure in ancient China, claimed to be an official historian of the Yellow Emperor and the inventor of Chinese characters. Legend has it that he had four eyes and four pupils, and that when he invented the characters, the deities and ghosts cried and the sky rained millet. From then on, Chinese people celebrate the day Guyu in honour of Cangjie. In the Gregorian calendar, it usually begins around April 20. Chinese at the UN Chinese was established as an official language of the United Nations in 1946. However, in early years, Chinese was not commonly used in the work of the Unite...