Today, May 13, 2017, is the 100 year anniversary of the sightings at Fatima, Portugal. The apparition, (which the three children believed to be the Virgin Mary), continued for five more months.
Read more at https://en.wikipedia.org/wiki/Our_Lady_of_F%C3%A1timaBeginning in the spring of 1917, the children reported apparitions of an Angel, and starting in May of 1917, apparitions of the Virgin Mary. The children reported a prophecy that prayer would lead to an end to the Great War, and a prophecy that a miracle would occur on October 13th of that year. Many pilgrims began visiting the area in response to the prophecies. The events of October 13th became known as the Miracle of the Sun.
I have always believed that this wasn't an appearance by Jesus's mother, but an other-world visitor trying to make contact and warn us. What do you think?