The researchers were sampling Y-chromosomes, the sex chromosome passed from Anglo-Saxons who arrived on England's eastern coast 16 centuries ago. He tested many theories: common ancestry dating back to the Neolithic age; . After the fall of the Roman empire, “you get this layer called 'dark earth'” in the
16 hrs ago . CITY CHAT: Consolidation is the order of the day for next season . Trending across the UK VIDEO: Man who trained girlfriend's dog to be a Nazi arrested after 'It was just a joke' - Man jailed despite claiming armed raid was YouTube Police let ravers party through the night 'because it was too dark'.