The national flag of Brazil, is a blue disc depicting a starry sky spanned by a curved band inscribed with the national motto "Ordem e Progresso", within a yellow rhombus, on a green field. It was officially adopted on 19 November 1889 — four days after the Proclamation of the Republic, to replace 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.

Brazil, officially the Federative Republic of Brazil, is the largest and easternmost country in South America and in Latin America. Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 states and the Federal District. It is the only country in the Americas to have Portuguese as an official language. Brazil is one of the most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world.