The National Flag of the Republic of China (traitional Chinese: 中華民國國旗; simplified Chinese: 中华民国国旗; pinyin: Zhōnghuá Mínguó guóqí) is a well-known symbol of the Republic of China (ROC). It is commonly referred to in Chinese as Blue Sky, White Sun, and a Wholly Red Earth (traditional Chinese: 青天、白日、滿地紅; simplified Chinese: 青天、白日、满地红; pinyin: qīng tiān, bái rì, mǎn dì hóng) to reflect its attributes. This design was first used in China by the Kuomintang (KMT) in 1917 and made the official flag of the ROC in 1928.