Agricultural colonies in Argentina were a demographically and economically important part of the evolution of the country. The Argentine

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 government, faced with large areas of fertile land that were unpopulated or settled by aboriginal tribes (unassimilated and considered undesirable for progress), encouraged Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an immigration, welcoming settling agreements with countries, regions and associations abroad.

Starting in 1853, President Justo José de Urquiza

Justo José de Urquiza

Justo José de Urquiza y García was an Argentine general and politician. He was president of the Argentine Confederation from 1854 to 1860.He was governor of Entre Ríos during the government of Juan Manuel de Rosas, governor of Buenos Aires with powers delegated from the other provinces...

 encouraged the establishment of agricultural colonies in the Littoral region (western Mesopotamia

Mesopotamia, Argentina

La Mesopotamia, Región Mesopotámica is the humid and verdant area of north-east Argentina, comprising the provinces of Misiones, Entre Ríos and Corrientes. The region called Litoral consists of the Mesopotamia and the provinces of Chaco, Formosa and Santa Fe...

 and north-eastern Pampa

Pampa

The Pampas are the fertile South American lowlands, covering more than , that include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos and Córdoba, most of Uruguay, and the southernmost Brazilian State, Rio Grande do Sul...

s, the area of influence of the Paraná

Paraná River

The Paraná River is a river in south Central South America, running through Brazil, Paraguay and Argentina for some . It is second in length only to the Amazon River among South American rivers. The name Paraná is an abbreviation of the phrase "para rehe onáva", which comes from the Tupi language...

 and Uruguay

Uruguay River

The Uruguay River is a river in South America. It flows from north to south and makes boundary with Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of the Mesopotamia from the other two countries...

 rivers).