This was the Europeans' first encounter with what they considered an "advanced civilization" in the Americas, with solidly built buildings and a complex social organization which they recognized as being comparable to those of the Old World.
Bernal Díaz del Castillo is the chronicler who gives the most detail about the voyage of Hernández de Córdoba; his is also the only first-person account by someone who was present for the entire process.
These soldiers and adventurers had been three years now in the newly settled territory of Cuba, many also having moved there from the colony of Castilla del Oro (Tierra Firme, present-day Panama) under its governor Pedrarias Dávila; they complained that "they hadn't done a single thing worth the telling".
From Bernal Díaz del Castillo's narrative, it appears possible to deduce — possibly against the narrator's own pretences because he would prefer to keep this hidden — that the original goal of the project was to capture Indians as slaves to increase or replace the manpower available to work the agricultural land or the mines of Cuba, and so that the Spaniards resident on the island who did not have Indians for their own exploitation of the land, such as Bernal himself, could establish themselves as hacendados.
Bernal Díaz del Castillo barely tries to conceal that the much-repeated Indians had something to do with the project, although authors such as Salvador de Madariaga prefer to conclude that the objective was a much more noble one, "to discover, to occupy ourselves and do things worthy of being told".
This prestigious pilot, veteran of the voyages of Columbus and even, according to some, a man knowledgeable of places not published on the mariners' maps, would seem an excessive resource for a slaving expedition to the Guanajes islets.
It was his job to count the treasure gathered by the expeditions, in metals and precious stones, in order to assure the correct allotment of the quinto real — the "royal fifth": 20% of all treasure gained in the conquests was destined for the Spanish royal treasury, a fiscal norm that originated in the Reconquista, the re-conquest of Spain from the Muslims — and of other legal requisites, such as reading to the Indians, before attacking them, a declaration of intentions and a warning, to legalize the aggression in the face of possible future investigations.
In short, from the data in hand one could make the case that Hernández de Córdoba discovered Yucatán by accident, upon finding his expedition — initially headed on a shorter voyage to kidnap Indians for the haciendas of Cuba — driven from its course by a storm.
Or one could suppose that after some evil thoughts by Diego Velázquez, promptly rebuked and found blameworthy by the other Spaniards, who furthermore were willing to continue without Indians in Cuba, the voyage was planned exclusively as one of discovery and conquest, and for that purpose they brought the Veedor, and such a good pilot.
Later they had 21 days of fair weather and calm seas after which they spotted land and, quite near the coast and visible from the ships, the first large populated center seen by Europeans in the Americas, with the first solidly built buildings.
The Spaniards, who evoked the Muslims in all that was developed but not Christian, spoke of this first city they discovered in America as El gran Cairo, as they later were to refer to pyramids or other religious buildings as mezquitas, "mosques".
Making themselves understood by signs — the first interpreters, Julián and Melchior, were obtained by precisely this expedition — the Indians, always with "smiling face and every appearance of friendliness", communicated to the Spaniards that the next day more pirogues would come to bring the recent arrivals to land.
These individuals, who once baptized into the Roman Catholic faith received the names Julianillo and Melchorejo (anglicized, Julián and Melchior), would later become the first Maya language interpreters for the Spanish, on Grijalva's subsequent expedition.
The second originated from the curiosity and valor of the cleric González, chaplain of the group, who having landed with the soldiers, undertook to explore — and plunder — a pyramid and some adoratorios while his companions were trying to save their lives.
González had the first view of Maya idols and he brought away with him pieces "half of gold, and the rest copper", which in all ways would suffice to excite the covetousness of the Spaniards of Cuba upon the expedition's return.
[1]: 20 This curious incident of the Indians apparently knowing the Spaniards' own word for themselves they later attributed the presence of the shipwrecked voyagers of de Nicuesa's unfortunate 1511 fleet.
The Indians, again with friendly aspect and manner, brought them to their village, where once more they could see solid constructions and many idols (Bernal alludes to the painted figures of serpents on the walls, so characteristic of Mesoamerica).
They also met their first priests, with their white tunics and their long hair impregnated with human blood; this was the end of the Indians' friendly conduct: they convoked a great number of warriors and ordered them to burn some dry reeds, indicating to the Spaniards that if they weren't gone before the fire went out, they would be attacked.
They soon discovered that the legions of Indians were being continually replenished by fresh reinforcements, and if good swords, crossbows, and muskets had astonished them at first, they had now overcome the surprise and maintained a certain distance from the Spaniards.
At the cry of "Calachuni", which the conquistadors soon learned was a word for "chief" or "captain", the Indians were particularly merciless in attacking Hernández de Córdoba, who was hit by twelve arrows.
[1]: 23 The Spanish also learned the dedication of their opponents to capturing people alive: two were taken prisoner and certainly sacrificed afterwards; of one we know that his name was Alonso Boto, and of the other Bernal is only able to say of him that he was "an old Portuguese".
Eventually, with only one Spanish soldier remaining unhurt, the captain practically unconscious, and the aggression of the Indians only increasing, they decided then that their only recourse was to form a close phalanx and break out of their encirclement in the direction of the launches, and to return to board them — leaving behind the water jugs — and get back to the ships.
When attacking the retreating boats with arrows, stones, and pikes they made a particular effort to interfere with their balance by weight and impact, and ended up dumping some of the Spaniards into the water.
The survivors of Hernández's men had to get quickly out to their ships, half swimming and hanging onto the edges of the launches, but in the end they were recovered by the boat with the shallowest draught, and reached safety.
Bernal writes that their "mouths and tongues were cracked", and of soldiers who were driven by desperation to drink brackish water at a place which they called El Estero de los Lagartos, because of the large alligators.
[1]: 26 The discovery of El Gran Cairo, in March 1517, was without a doubt a crucial moment in the Spanish perception of the natives of the Americas: until then, nothing had resembled the stories of Marco Polo, or the promises of Columbus, which prophesied Cathay, or even the Garden of Paradise, just past every cape or river.
[1]: 27 The news that this "island" of Yucatán had gold, doubted by Bernal but enthusiastically maintained by Julianillo, the Maya prisoner taken at the battle of Catoche, fed the subsequent series of events that was to end with the Conquest of Mexico by the third flotilla sent, that of Hernán Cortés.