The history of Argentina is divided by historians into four main parts: the pre-Columbian time or early history (up to the sixteenth century), the colonial period (1530–1810), the period of nation-building (1810-1880), and the history of modern Argentina (from around 1880).
Prehistory in the present territory of Argentina began with the first human settlements on the southern tip of Patagonia around 13,000 years ago. Written history began with the arrival of Spanish chroniclers in the expedition of Juan Díaz de Solís in 1516 to the Río de la Plata, which marks the beginning of Spanish domination in this region.
In 1776 the Spanish Crown established the Viceroyalty of the Río de la Plata, an umbrella of territories from which, with the Revolution of May 1810, began a process of gradual formation of several independent states, including one called the United Provinces of Río de la Plata. With the declaration of independence on July 9, 1816 and the military defeat of the Spanish Empire in 1824, a federal state was formed in 1853-1861, known today as the Republic of Argentina.
The area now known as Argentina was relatively sparsely populated until the period of European colonization. The earliest traces of human life are dated from the Paleolithic period, and there are further signs in the Mesolithic and Neolithic. However, large areas of the interior and Piedmont were apparently depopulated during an extensive dry period between 4000 and 2000 B.C.
The Uruguayan archaeologist Raúl Campá Soler divided the indigenous peoples in Argentina into three main groups: basic hunters and food gatherers, without development of pottery; advanced gatherers and hunters; and basic farmers with pottery. The second group could be found in the Pampa and south of Patagonia, and the third one included the Charrúas and Minuane people and the Guaraníes.