Jeremy Black looks at two millennia of English history, and identifies two major themes: a lack of geographic and concomitant economic unity- and the fact that from the Roman invasion onward, a united England was often politically associated withMoreJeremy Black looks at two millennia of English history, and identifies two major themes: a lack of geographic and concomitant economic unity- and the fact that from the Roman invasion onward, a united England was often politically associated with Europe, from Cnut to the Hanoverians.