BOLTON, ENGLAND—Archaeologists are searching buildings in Bolton for medieval markings designed to fend off evil spirits and bad omens, according to a report in The Bolton News. Members of the Bolton Archaeology and Egyptology Society are being trained to spot the marks through tours of historic buildings such as Hall i' th’ Wood, a Tudor manor house built in the early sixteenth century. “Buildings often change uses,” says Ian Trumble, the society’s chairman. “For example, Hall i’ th’ Wood was a farmhouse before it become a posh home and markings could show the different uses of the building over time.” Among the markings society members will be looking for are daisy wheels, taper burns, and the “VV” sign, which stands for “Virgo Virginum” and has traditionally been associated with the cult of the Virgin Mary. To read in-depth about medieval graffiti, go to “Letter from England: Writing on the Church Wall.”