London had Roman sewers which they used all the way up to the Victorian era but most Britons were pretty dirty by most standards. When the Vikings first arrived as settlers Britons thought they were going to 'steal' all their women because they took the time to wash and brush their hair daily. What makes it even funnier is that when the Vikings got to Sicily and the Muslims there were horrified by how unclean the Vikings were, so the Brits must've been nasty af