Legal English the history of the development of English as a legal language. In prehistoric Britain, traditional common law was discussed in the vernacular (see Celtic law). The legal language and legal tradition changed with waves of conquerors over the following centuries. Roman Britain (after the conquest beginning in AD 43) followed Roman legal tradition, and its legal language was Latin. Following the Roman departure from Britain circa 410 and the Anglo-Saxon invasion of Britain, the dominant tradition was instead Anglo-Saxon law, which was discussed in the Germanic vernacular (Anglo-Saxon, Old English), and written in Old English since circa 600, beginning with
Anglo-Saxon paganism and aristocracy which was then emphasising Anglo-Saxon culture and defining itself against British culture. If the British Christians were able to convert any of the Anglo-Saxon elite conquerors, it was likely only on a small community scale, with British Christianity having little impact on the later establishment of Anglo-Saxon Christianity in the seventh century. Prior scholarship tended to view Anglo-Saxon paganism as a development from an older Germanic paganism. The scholar Michael Bintley cautioned against this approach, noting that this "'Germanic' paganism" had "never had a single "ur"-form" from which later variants developed. Anglo-Saxon paganism only existed for a relatively