The massacre of St Brice’s Day

Experts believe they have solved the puzzle of the mass Viking grave discovered in 2008 beneath St John’s College, St Giles, England: Ethnic cleansing.

Two years of forensic detective work by Thames Valley Archaeological Services revealed the theory that the 34 to 38 young Danish men "were rounded up on the streets of Oxford and murdered, before being carted out of the city gates and dumped in a ditch." They can even pinpoint the day: St Brice’s Day, November 13, 1002.