Paraguay (Guarani: Paraguái), officially the Republic of Paraguay, is a landlocked country located in the central region of South America. It borders Bolivia to the northwest and north, Brazil to the northeast and east, and Argentina to the southeast, south, and west. Paraguay has access to the Atlantic Ocean via the Paraná–Paraguay Waterway. The country is governed as a unitary presidential republic composed of a capital district and seventeen departments. Its capital and largest city is Asunción.
The indigenous Guaraní had been living in eastern Paraguay for at least a millennium before the arrival of Spanish conquistadores in 1524. The city of Asunción was founded in 1537 as the first capital of the Governorate of the Río de la Plata within the Spanish Empire.