Myanmar flag history
The flag adopted by Burma upon its independence from the United Kingdom on 4 January 1948 consisted of a red field with a blue canton. The blue canton was charged with one large white star, representing the union, surrounded by 5 smaller stars representing the five main ethnic groups of Burma - Burman, Karen, Shan, Kachin, and Chin. This flag remained in use until January 1974 and has a ratio of 5:9
Burma flag (1948-1974)
Myanmar (Burma) flag history
The new flag adopted on 3 January 1974 upon the declaration of a socialist republic by Ne Win has a similar ratio as the previous flag and depicted 14 stars, encircling a gear and a rice plant in a blue-coloured canton against a red field. The rice stands for agriculture, the gear represents industry, and the 14 stars represent each of the 14 states of the Union. The 14-star flag was hung upside down during the 8888 Uprising of 1988 by the protesters as a sign of protest against the military government.
Myanmar (Burma) flag (1974-2010)