Indians, returned, leaving a hundred of his men in a little fort, called Corpus Christi, close to Espiritu Santo, the fort which Cabot had constructed. The friendliness of the Timbus induced Don Pedro to abandon Buenos Ayres and move to Corpus Christi. There he repaired with about five hundred men, all who remained of the two thousand six hundred and thirty with which he sailed from Cadiz. The horses he abandoned on the pampa; there they became the ancestors of the innumerable herds which at one time overspread the Argentine Republic from the Chaco to Patagonia, and whose descendants to this day stock the estancias of that country.[19]

From Corpus Christi Juan de Ayolas was sent out to explore the river, and try to find the long-sought-for waterway to the Peruvian mines. He never reached Peru, and Corpus Christi never saw him return. Mendoza waited a year, and then returned to Spain, leaving his garrison with provisions for a year, the bread[20] `at the rate of (á razon de) a pound a day, and if they wanted more to get it for themselves.' On the passage home he died insane. The pious were of opinion that it was a judgment on him for the murder of Don Juan Osorio. Before he embarked, Don Pedro had despatched a relative, Gonzalo de Mendoza, to Spain to bring provisions and recruits. Gonzalo, having obtained provisions in Brazil, returned to Corpus Christi; thence in company with Salazar de Espinosa he headed an expedition up the river in search of Juan de Ayolas, who had been appointed successor to Don Pedro. With them went Domingo Martinez de Irala, a man destined to play a great part in the conquest of Paraguay.

The expedition went up the Paraguay to a place near Fort Olimpo (21° long., 58° lat.) about a hundred leagues above Asuncion. Here they sent out exploring parties in all directions to seek Ayolas, but without success. Irala remained with one hundred men at Fort Olimpo. Gonzalo de Mendoza on his return, being attracted by the sight of a fine site for a town, landed, and on the fifteenth day of August, 1537, founded Asuncion. Here the Spaniards first met the Guaranís, who were destined in after-years to be the converts of the Jesuits, and be assembled by them in their famous missions.

`At the discovery of America,' says Felix de Azara in his `Descripcion y Historia del Paraguay', `the Guaranís were spread from the Guianas to the shores of the river Plate, and occupied all the islands of the Paraná extending up to latitude 20° on the Paraguay, but without crossing either that river or the river Plate.' They had also a few towns in the province of Chiquitos, and the nation of the Chiriguanás was an offshoot from them. In Brazil they were soon all either rendered slaves or so crossed with the African negro that the pure race has been almost entirely lost, though the language remains under the name of the Lingoa Geral, and many words from it have been introduced into Portuguese spoken by the Brazilians, as capim, grass; caipira, half-caste, etc. In fact, so great is the number of these words, idioms, phrases, and terms of speech derived from Guaraní, that Dr. Baptista de Almeida, in his preface to his grammar published at Rio Janeiro (1879), computes that there are more words derived from Guaraní than even from Arabic in the Portuguese spoken in Brazil.[21] The Guaranís in Brazil were known either as Tupis, from the word tupy,[22] savage, or Tupinambás, from tupynambá, literally, the savage or indigenous men.

Jean de Lery, the well-known Huguenot pastor and friend of Calvin, passed a year on the coast of Brazil about 1558, having accompanied the expedition of the famous Villegagnau. In his book (`Histoire d'un Voyage faict en la Terre du Brezil') he always refers to the Indians as Toupinaubaoults, and has preserved many curious details of them before they had had much contact with Europeans. He appears to have had a considerable acquaintance with the language, and has left some curious conversations en langage sauvage et Français, in which he gives some grammatical rules. The language of conversation is almost identical with that of Paraguay, though some words are used which are either peculiar to the Tupis or obsolete in Paraguay to-day. His account of their customs tallies with that of the various Spanish writers and explorers who have written on the subject. Tobacco, which seems to have been known under the name of `nicotiane' to Lery, he finds in Brazil under the name of `petun', the same name by which it is called in Paraguay at present. He believed that `petun' and `nicotiane' were two different plants, but the only reason he adduces for his belief is that `nicotiane' was brought in his time from Florida, which, as he observes, is more than a thousand leagues from `Nostre Terre du Brezil'. His experience of savages was the same as that of Azara, and almost all early travellers, for he says: `Nos Toupinambaoults reçoivent fort humainement les estrangers amis qui les vont visiter.'[23] Lery, however, seemed to think that, in spite of their pacific inclination, it was not prudent to put too much power in their hands, for he remarks: `Au reste parcequ'ils chargeyent, et remplisseyent leurs mousquets jusques au bout . . . nous leurs baillions moitié (i.e., la poudre) de charbon broyé.' This may have been a wise precaution, but he omits to state if the charbon broyé was bailli at the same price as good powder. According to Azara, who takes his facts partly from the contemporary writers — Schmidel, Alvar Nuñez, Ruy Diaz de Guzman, and Barco de la Centenera — the Guaranís were divided into numerous tribes, as Imbeguas, Caracaras, Tembues, Colistines, and many others. These tribes, though apparently of a common origin, never united, but each lived separately under its own chief. Their towns were generally either close to or in the middle of forests, or at the edge of rivers where there is wood. They all cultivated pumpkins, beans, maize, mani (ground nuts), sweet potatoes, and mandioca; but they lived largely by the chase, and ate much wild honey. Diaz in his `Argentina' (lib. i., chap. i.) makes them cannibals. Azara believes this to have been untrue, as no traditions of cannibalism were current amongst the Guaranís in his time, i.e., in 1789-1801. Liberal as Azara was, and careful observer of what he saw himself, I am disposed to believe the testimony of so many eye-witnesses of the customs of the primitive Guaranís, though none of them had the advantage enjoyed by Azara of living three hundred years after the conquest. It may be, of course, that the powers of observation were not so well developed in mankind in the beginning of the sixteenth as at the end of the eighteenth century, but this point I leave to those whose business it is to prove that the human mind is in a progressive state. However, Father Montoya, in his `Conquista Espiritual del Paraguay', affirms most positively that they used to eat their prisoners taken in war.'[24]

Their general characteristics seem to have been much the same as those of other Indians of America. For instance, they kept