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In page Flag of Chile:

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The flag of the U.S. state of Texas is similar to the Chilean flag. The flag of Texas was designed and adopted on 25 January 1839; whereas Chile adopted a flag similar to today's Chilean flag 22 years earlier on 18 October 1817. Nearly two decades before the then-national flag was approved by the Texas Congress and President Mirabeau B. Lamar. Texas' current flag is not a copied version of the Chilean flag, contrary to popular belief.[citation needed]