A red field, with a blue canton containing a 12-ray white sun. This flag flew over Mainland China until 1949, and is presently flown in Taiwan and other islands under the control of the ROC. This flag can be sometimes seen in Mainland China, for historical and unofficial use.
Proposed national flags of the People's Republic of China
In July 1949, a contest was announced for a national flag for the newly founded People's Republic of China. From a total of about 3,000 proposed designs, 38 finalists were chosen. In September, the current flag, submitted by Zeng Liansong, was officially adopted.
Used mainly in Shanghai and eastern parts of northern China until 1928. This flag was widely flown even before the founding of the Republic of China by Chinese on the eastern coast and garnered the greatest respect at the founding of the ROC. Stripes represent the five great races in China's history, according to Dr. Sun Yat-sen: red for Han Chinese, yellow to represent Manchus, blue as Mongols, white for both Huis and Uyghurs, and black for Tibetans.
A light blue field charged with the coat of arms of the Government of Macau. During the Portuguese administration this flag also represented the Territory of Macau in the international forums, although it was not the official flag of the Portuguese colony.
1975–1999 (Not Official)
Variant flag of Portuguese colonial Government of Macau.
Not official variant without the Kingdom of the Algarve castles in the coat of arms. This flag was found at the University of Macau in a photo of International University sports meeting and it was used in the parade. Although this flag was never used officially, some sports media used it instead of the Portuguese Flag to represent the colony.