Guadalupe

The central narrative appears in the Nican Mopohua, a Nahuatl-language account published in 1649 within Luis Laso de la Vega's Huei Tlamahuicoltica, and generally attributed by scholars to the earlier work of Antonio Valeriano, a Nahua scholar of the sixteenth century.

In that account, on 9 December 1531 a man named Juan Diego Cuauhtlatoatzin, walking near the hill of Tepeyac, encountered a young woman who addressed him in his own language and identified herself as the mother of the true God. She asked that a church be built there. He carried the request to Bishop Juan de Zumarraga of Mexico, who did not act.

The account continues that on 12 December, after his uncle Juan Bernardino fell gravely ill, Juan Diego was told to gather flowers from the hilltop out of season, carried them in his tilma, and when he opened the cloak before the bishop the image of the woman was found on the cloth. A shrine was built at Tepeyac, and the image has been venerated there since.

The documentary situation is genuinely debated among Catholic historians. There is early evidence of devotion at Tepeyac in the sixteenth century, including the 1556 controversy in which the Franciscan provincial Francisco de Bustamante criticised the growing cult, which itself proves the devotion existed and was already substantial.

What is disputed is the earliest narrative documentation of the apparitions themselves. Zumarraga's surviving writings do not describe the event. The Nican Mopohua as published dates from 1649, more than a century later, though its language and internal evidence lead many scholars to place its composition much earlier. A Catholic historian and former director of the basilica, Guillermo Schulenburg, publicly doubted the historical existence of Juan Diego in the 1990s, which caused significant controversy before the canonization.

The Holy See proceeded with the canonization of Juan Diego in 2002 after its own historical inquiry. Reasonable Catholics can hold that the historical evidence is thinner than devotional literature suggests while still honouring the devotion. Neither position is disloyal.

Tenochtitlan fell in 1521. The decade that followed brought epidemic disease, forced labour, the destruction of temples, and mass baptisms carried out with little catechesis. Missionary friars themselves recorded the brutality of the encomienda system, and Bartolome de las Casas wrote his indictment of it in the same period.

Into that setting the tradition places an image of a dark-skinned woman, in indigenous dress, standing before rather than upon the sun and moon, speaking the language of the conquered, and choosing an ordinary Nahua man as her messenger. Devotion spread among indigenous people with a speed that startled the missionaries.

Historians disagree about how much of the imagery deliberately engaged Nahua religious vocabulary. What is not disputed is the effect: a Christianity that had arrived with soldiers acquired, at Tepeyac, a face that the conquered recognised as their own.

A great deal of viral material makes physical claims about the image which are not Church teaching, have not been verified in the way the claims suggest, and often rest on studies never published in peer-reviewed scientific literature.

The Church has never declared the image scientifically inexplicable, has never defined anything about its material composition, and does not require belief in any of the following.

When a devotion is defended with claims that collapse under examination, the collapse takes the devotion down with it. Many people who lose faith over Catholic marvels lose it because they were sold certainties the Church never taught.

The substance of Guadalupe does not depend on any laboratory result. It rests on the pattern the Gospel already states: that God moves toward the person nobody in power was listening to, and speaks in that person's own language.

The Basilica of Our Lady of Guadalupe in Mexico City receives an estimated ten to twenty million visitors a year, with the largest numbers around 12 December. Many arrive walking, some on their knees, most carrying an intention they never announce.

Guadalupe is also, for millions of Latin American and Latino Catholics, a matter of identity as much as devotion, bound up with migration, family, and survival. Our Lady of Guadalupe was named patroness of the Americas by John Paul II in 1999.