Earlier this month Giles Gasper recorded a podcast interview with Artemis Irvine (third-year history undergraduate at Durham University) for the second season of Travels Through Time. The series asks what year the interviewee would like to go back to, and in this case, it was 1215, the year of the Fourth Lateran Council, Magna Carta, and, possibly, the year that a certain Robert Grosseteste was putting together his treatise On the Sphere. This wonderful and intriguing work is the subject of the second Ordered Universe volume currently in preparation: Mapping the Universe. So, if you’re wondering what happened in 1215 (which some of you may be), then this may be for you. Many thanks indeed to Artemis and the Travels in Time team!