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In page Burkina Faso:

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The Republic of Upper Volta (French: République de Haute-Volta) was established on 11 December 1958 as a self-governing colony within the French Community. The name Upper Volta related to the nation's location along the upper reaches of the Volta River. The river's three tributaries, the Black, White and Red Volta, were expressed in the three colors of the former national flag.[citation needed]