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The national flag of Brazil (Portuguese: Bandeira do Brasil), often colloquially called the Auriverde (The Gold and Green),is a blue disc depicting a starry sky spanned by a curved band inscribed with the national motto "Ordem e Progresso" ("Order and Progress"), within a gold rhombus, on a green field. Brazil officially adopted this design for its national flag on November 19, 1889, replacing the flag of the Empire of Brazil. The concept was the work of Raimundo Teixeira Mendes, with the collaboration of Miguel Lemos, Manuel Pereira Reis and Décio Villares.
The green field and the gold rhombus from the previous imperial flag were preserved — the green represented the House of Braganza of Pedro I, the first Emperor of Brazil, while the gold represented the House of Habsburg of his wife, Empress Maria Leopoldina. A blue circle with 27 white five-pointed stars replaced the arms of the Empire of Brazil. The stars, whose position in the flag reflect the sky over Rio de Janeiro on November 15, 1889, represent the union's federated units — each star representing a specific state, plus one for the Federal District.
The motto Ordem e Progresso is inspired by Auguste Comte's motto of positivism: "L'amour pour principe et l'ordre pour base; le progrès pour but" ("Love as a principle and order as the basis; progress as the goal").