About the Piauí state flag

The flag of Piaui was created on 24 July 1922. The blue canton and a star represents the state itself and the green and yellow bars represent Piauí's union with Brazil. In 2005 the words "13 DE MARÇO DE 1823" were added below the star to commemorate the date of the Battle of Jenipapo, an engagement in Brazil's war of independence.

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