Spoken Chinese has numerous regional and local varieties, many of which are mutually unintelligible. Most of these are rare outside their native areas, though they may be spoken outside of China. Many varieties also have Literary and colloquial readings of Chinese characters for newer standard reading sounds. Since a 1909 Qing dynasty decree, China has promoted Mandarin for use in education, the media, and official communications. The proclamation of Mandarin as the official national language, however, was not fully accepted by the Cantonese authorities in the early 20th century, who argued for the "regional uniqueness" of their own local language and commercial importance of the region. Unlike other non-Mandarin Chinese varieties, Cantonese persists in a few state television and radio broadcasts today.