There are countless fringe religious groups, but the Palmarians are interesting because they tell us a lot about how important context is in making old men in robes and fancy hats look serious. And also because everything we know about them makes them sound like the villains in a Fallout side quest.
Their roots go back to 1968, when four schoolgirls from the small Spanish town of El Palmar de Troya claimed they saw an apparition of the Virgin Mary. The local bishop countered with, "Nah, you probably didn't," but believers emerged anyway -- chief among them an initially skeptical Clemente Dominguez y Gomez, a failed priest turned office clerk. Dominguez, among others, claimed that he also received visions when he visited the site of the "miracle." But then Dominguez added that Mary had instructed him to rid the Catholic Church of "heresy and progressivism," even as those schoolgirls who kicked this all off retorted with, "Uh, you're weird, please don't speak for us."