In Brazil, four students are shot and killed during a manifestation against the Brazilian dictator Getúlio Vargas, which resulted in the outbreak of the Constitutionalist Revolution several weeks later.

The Constitutionalist Revolution of 1932 (sometimes also referred to as Paulista War or Brazilian Civil War) is the name given to the uprising of the population of the Brazilian state of So Paulo against the Brazilian Revolution of 1930 when Getlio Vargas assumed the nation's Presidency; Vargas was supported by the people, the military and the political elites of Minas Gerais, Rio Grande do Sul and Paraba. The movement grew out of local resentment from the fact that Vargas ruled by decree, unbound by a Constitution, in a provisional government. The 1930 Revolution also affected So Paulo by eroding the autonomy that states enjoyed during the term of the 1891 Constitution and preventing the inauguration of the governor of So Paulo Jlio Prestes in the Presidency of the Republic, while simultaneously overthrowing President Washington Lus, who was governor of So Paulo from 1920 to 1924. These events marked the end of the First Republic. Vargas appointed a northeasterner as governor of So Paulo.

The Revolution's main goal was to press the provisional government headed by Getlio Vargas to adopt and then abide by a new Constitution, since the elected President Prestes was kept from taking office. However, as the movement developed and resentment against President Vargas and his revolutionary government grew deeper, it came to advocate the overthrow of the Federal Government, and it was even speculated that one of the Revolutionaries' goals was the secession of So Paulo from the Brazilian federation. However, it is noted that the separatist scenario was used as a guerrilla tactic by the Federal Government to turn the population of the rest of the country against the state of So Paulo, broadcasting the alleged separatist notion throughout the country. There is no evidence that the movement's commanders sought separatism.

The uprising commenced on 9 July 1932, after four protesting students were killed by government troops on 23 May 1932. On the wake of their deaths, a movement called MMDC (from the initials of the names of each of the four students killed, Martins, Miragaia, Drusio and Camargo) started. A fifth victim, Alvarenga, was also shot that night, but died months later.

In a few months, the state of So Paulo rebelled against the federal government. Counting on the solidarity of the political elites of two other powerful states, (Minas Gerais and Rio Grande do Sul), the politicians from So Paulo expected a quick war. However, that solidarity was never translated into actual support, and the So Paulo revolt was militarily crushed on October 2, 1932.

In total, there were 87 days of fighting (July 9 to October 4, 1932with the last two days after the surrender of So Paulo), with a balance of 934 official deaths, though non-official estimates report up to 2,200 dead, and many cities in the state of So Paulo suffered damage due to fighting.

In spite of its military defeat, some of the movement's main demands were finally granted by Vargas afterwards: the appointment of a non-military state Governor, the election of a Constituent Assembly and, finally, the enactment of a new Constitution in 1934. However that Constitution was short-lived, as in 1937, amidst growing extremism on the left and right wings of the political spectrum, Vargas closed the National Congress and enacted another Constitution, which established an regime called Estado Novo.

July 9 marks the beginning of the Revolution of 1932, and is a holiday and the most important civic date of the state of So Paulo. The paulistas (as the inhabitants of So Paulo are known) consider the Revolution of 1932 as the greatest movement of its civic history. It was the first major revolt against the government of Getlio Vargas and the last major armed conflict occurring in the history of Brazil.

Brazil (Portuguese: Brasil, pronounced [bɾaˈziw]), officially the Federative Republic of Brazil (Portuguese: República Federativa do Brasil), is the largest country in both South America and Latin America. At 8.5 million square kilometers (3,300,000 sq mi) and with over 211 million people, Brazil is the world's fifth-largest country by area and the sixth 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 largest country to have Portuguese (namely Brazilian Portuguese) as an official language and the only one in the Americas; it is also one of the most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world; as well as the most populous Roman Catholic-majority country.

Bounded by the Atlantic Ocean on the east, Brazil has a coastline of 7,491 kilometers (4,655 mi). It borders all other countries in South America except Ecuador and Chile and covers 47.3% of the continent's land area. Its Amazon basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage makes Brazil one of 17 megadiverse countries, and is the subject of significant global interest, as environmental degradation through processes like deforestation has direct impacts on global issues like climate change and biodiversity loss.

Brazil was inhabited by numerous tribal nations prior to the landing in 1500 of explorer Pedro Álvares Cabral, who claimed the area for the Portuguese Empire. In the first centuries of Colonial Brazil, the Indigenous Tupi language and the general languages derived from it were the main forms of communication of the entire colonial system, overcoming even the hegemony of the Portuguese language, contributing to the toponymy of the Brazilian territory, in Brazilian culture and vocabulary. Brazil remained a Portuguese colony until 1808 when the capital of the empire was transferred from Lisbon to Rio de Janeiro. In 1815, the colony was elevated to the rank of kingdom upon the formation of the United Kingdom of Portugal, Brazil and the Algarves. Independence was achieved in 1822 with the creation of the Empire of Brazil, a unitary state governed under a constitutional monarchy and a parliamentary system. The ratification of the first constitution in 1824 led to the formation of a bicameral legislature, now called the National Congress. The country became a presidential republic in 1889 following a military coup d'état. An authoritarian military junta came to power in 1964 and ruled until 1985, after which civilian governance resumed. Brazil's current constitution, formulated in 1988, defines it as a democratic federal republic. Due to its rich culture and history, the country ranks thirteenth in the world by number of UNESCO World Heritage Sites.Brazil is a regional and middle power, and an emerging power.

Brazil is classified as an upper-middle income economy by the World Bank and a newly industrialized country, with the largest share of global wealth in South America. It is considered an advanced emerging economy, having the twelfth largest GDP in the world by nominal, and eighth by PPP measures. It is one of the world's major breadbaskets, being the largest producer of coffee for the last 150 years. Brazil is a founding member of the United Nations, the G20, BRICS, Mercosul, Organization of American States, Organization of Ibero-American States and the Community of Portuguese Language Countries.