An ex-voto is a votive offering to a saint or a divinity, given in fulfillment of a vow or in gratitude or devotion. The term is usually restricted to Christian examples.
Mexican votive painting of 1911; the man survived an attack by a bull, attributed to the care of Our Lady of San Juan de los Lagos
La Rochelle slave ship Le saphir, ex-voto in the Saint Louis Cathedral in La Rochelle, 1741
Ex-voto in the church of Notre Dame de la Garoupe, Antibes, France. It thanks Notre Dame de Bon Port for her help during a shipwreck in the Bay of Bengal in 1857
Votive tablets to Saint Mary in Himmerod Abbey, Germany
Milagros are religious folk charms that are traditionally used for healing purposes and as votive offerings in Mexico, the southern United States, other areas of Latin America, and parts of the Iberia
Ex-voto
…Votive candle Milagro (votive) Everyday Miracles: Medical Imagery in Ex-Votos National Library of Medicine…
Milagros nailed to the church bell at San Miguel Mission of Santa Fe, New Mexico
The text that is painted beneath this ex-voto tells of the Gonzalez family, who were on the streets one night and were attacked. But, thanks to the Virgin of San Juan de los Lagos (whose image in the painting floats between the family and their assailants) they escaped unharmed. Our Lady of San Juan de los Lagos is venerated in the region of central Mexico where the depicted incident occurred. The ex-voto is dated August 28, 1947, San Juan de los Lagos.