LIVERPOOL, ENGLAND—A fragment of human leg bone discovered in Cumbria’s Kents Bank in the 1990s has been found to be more than 10,000 years old by Ian Smith of Liverpool John Moores University and Hannah O’Regan of the University of Nottingham. “Previous cave burials of humans from around this date have been in southern England, with later dates further north,” explained Smith. The cave helped preserve the bones, which had been held in a museum for study.