Juan Hiplito del Sagrado Corazn de Jess Yrigoyen (Spanish pronunciation: [i'polito iri'oen]; 12 July 1852 3 July 1933) was an Argentine politician of the Radical Civic Union and two-time President of Argentina, who served his first term from 1916 to 1922 and his second term from 1928 to 1930. He was the first president elected democratically by means of the secret and mandatory male suffrage established by the Senz Pea Law of 1912. His activism was the prime impetus behind the passage of that law in Argentina.

Known as "the father of the poor", Yrigoyen presided over a rise in the standard of living of Argentina's working class together with the passage of a number of progressive social reforms, including improvements in factory conditions, regulation of working hours, compulsory pensions, and the introduction of a universally accessible public education system.

Yrigoyen was the first nationalist president, convinced that the country had to manage its own currency and, above all, it should have control of its transportation and its energy and oil exploitation networks.Between the 1916 general election and the 1930 coup d'etat, political polarization was on the rise. Personalist radicalism was presented as the "authentic expression of the nation and the people" against the "oligarchic and conservative regime". For the ruling party, the will of the majorities prevailed over the division of powers. The opposition, on the other hand, accused the Executive Branch of being arrogant and demanded greater participation from Congress, especially in matters such as the conflictive federal interventions.

Argentina (Spanish pronunciation: [aɾxenˈtina] (listen)), officially the Argentine Republic (Spanish: República Argentina), is a country in the southern half of South America. Argentina covers an area of 2,780,400 km2 (1,073,500 sq mi), making it the largest Spanish-speaking nation in the world by area. It is the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over a part of Antarctica, the Falkland Islands and South Georgia and the South Sandwich Islands.

The earliest recorded human presence in modern-day Argentina dates back to the Paleolithic period. The Inca Empire expanded to the northwest of the country in Pre-Columbian times. The country has its roots in Spanish colonization of the region during the 16th century. Argentina rose as the successor state of the Viceroyalty of the Río de la Plata, a Spanish overseas viceroyalty founded in 1776. The declaration and fight for independence (1810–1818) was followed by an extended civil war that lasted until 1861, culminating in the country's reorganization as a federation. The country thereafter enjoyed relative peace and stability, with several waves of European immigration, mainly Italians and Spaniards, radically reshaping its cultural and demographic outlook; over 60% of the population has full or partial Italian ancestry, and Argentine culture has significant connections to Italian culture.The almost-unparalleled increase in prosperity led to Argentina becoming the seventh-wealthiest nation in the world by the early 20th century. In 1896, Argentina's GDP per capita surpassed that of the United States and was consistently in the top ten before at least 1920. Currently, it is ranked 71st in the world. Following the Great Depression in the 1930s, Argentina descended into political instability and economic decline that pushed it back into underdevelopment, although it remained among the fifteen richest countries for several decades. Following the death of President Juan Perón in 1974, his widow and vice president, Isabel Perón, ascended to the presidency, before being overthrown in 1976. The following military junta, which was supported by the United States, persecuted and murdered thousands of political critics, activists, and leftists in the Dirty War, a period of state terrorism and civil unrest that lasted until the election of Raúl Alfonsín as president in 1983.

Argentina is a regional power, and retains its historic status as a middle power in international affairs. Argentina is a developing country that ranks 46th in the Human Development Index, the second-highest in Latin America after Chile. It maintains the second-largest economy in South America, and is a member of G-15 and G20. Argentina is also a founding member of the United Nations, World Bank, World Trade Organization, Mercosur, Community of Latin American and Caribbean States and the Organization of Ibero-American States. Since January 2022 Argentina is an OECD candidate country.