Dec. 12 marks the Feast of Our Lady of Guadalupe in the Catholic Church. It dates to 1531 when Catholics believe the Blessed Virgin Mary appeared to Juan Diego, an Aztec peasant at Tepeyac Hill in Mexico City. Latinos venerate Bl. Juan Diego on Dec. 9 and Our Lady of Guadalupe. Their feast days are part of Catholic Advent celebrations. Here are free printable Our Lady of Guadalupe lesson plans. Lesson plans on Mexico are included.Our Lady of Guadalupe printable lesson plans for Catholic feast day