Tricolour (flag) orange-white-blue design of the Prince's Flag ("Prinsenvlag", predecessor of the flags of the Netherlands and Luxembourg), used from 1579 by William I of Orange-Nassau in the Eighty Years' War, establishing the independence of the Dutch Republic from the Spanish Empire. Though not the first tricolour flag, one of the most famous, known as "Le Tricolore", is the blue, white and red (whence also called "Le Bleu-Blanc-Rouge") flag of France adopted in the French Revolution. With the formation of French client republics after 1795, the revolutionary tricolour was exported and adopted more widely in Europe, by the Republic of Alba 1796
Tricolour (flag) Qajar dynasty and the Russian Empire, respectively. The Indian independence movement in 1931 also adopted a tricolour (loan-translated as Hindi, तिरंगा "Tiraṅgā") in the traditional symbolism of "national unification" and republican "self-rule" (Purna Swaraj), adopted as the flag of the Indian Republic in 1947. In 1999, a red, green, and blue tricolour was proposed as the Flag of Mars. The design symbolizes liberty, and also the terraforming of Mars by humanity from a red planet to a green one, and eventually an Earth-like blue one. Tricolour (flag) A tricolour or tricolor is a type of flag or banner design with