Traditional Chinese characters (traditional Chinese: 正體字/繁體字; simplified Chinese: 正体字/繁体字, Pinyin: Zhèngtǐzì/Fántǐzì) are Chinese characters in any character set that does not contain newly created characters or character substitutions performed after 1946. They are most commonly the characters in the standardized character sets of Taiwan, of Hong Kong and Macau. The modern shapes of traditional Chinese characters first appeared with the emergence of the clerical script during the Han dynasty and have been more or less stable since the 5th century (during the Southern and Northern Dynasties).