On this day 506 years ago, the first Mass was celebrated in what is now Mexican territory, on the island of Cozumel south of Cancún, in the current state of Quintana Roo.
Accompanying Captain Juan de Grijalva on the second expedition from Cuba to the Yucatan Peninsula was, as senior chaplain, the priest Juan Díaz.
Three days after arriving on the island of Cozumel, in the current state of Quintana Roo, southern Mexico, Father Díaz celebrated Mass on May 6, 1518.