The opening verses of the fourteenth-century Cornish play Origo Mundi .
Prior to the 5th century AD, most people in Great Britain spoke the Brythonic languages , but these numbers declined sharply throughout the Anglo-Saxon period (between the fifth and eleventh centuries), when Brythonic languages were displaced by the West Germanic dialects that are now known collectively as Old English .
Debate continues over whether mass migration or a small scale military takeover occurred during this period, not least because the situation was strikingly different from, for example, post-Roman Gaul , Iberia or North Africa , where Germanic-speaking invaders gradually switched to local languages.[ 1] [ 2] [ 3] This linguistic decline is therefore crucial to understanding the cultural changes in post-Roman Britain , the Anglo-Saxon settlement of Britain and the rise of an English language .
The notable exceptions were the Cornish language persisting into the 18th century, and a form of Welsh remaining in common usage in the English counties along the Welsh border into the late 19th century.[ 4] [ 5]
^ Bryan Ward-Perkins, ‘Why did the Anglo-Saxons not become more British? ’, English Historical Review , 115 (2000), 513–33.
^ Chris Wickham, Framing the Early Middle Ages: Europe and the Mediterranean 400-800 (Oxford: Oxford University Press, 2005), pp. 311-12.
^ Hills, C. M. (2013). "Anglo-Saxon Migrations". The Encyclopedia of Global Human Migration . Wiley-Blackwell. doi :10.1002/9781444351071.wbeghm029 .
^ Transactions Woolhope Naturalists' Field Club, 1887, page 173
^ Ellis, A.J. (1882). Powell, Thomas (ed.). "On the delimitation of the English and Welsh languages" . Y Cymmrodor . 5 : 191, 196. (reprinted as Ellis, Alexander J. (November 1884). "On the delimitation of the English and Welsh language". Transactions of the Philological Society . 19 (1): 5–40. doi :10.1111/j.1467-968X.1884.tb00078.x . hdl :2027/hvd.hx57sj . ); Ellis, A.J. (1889). "Introduction; The Celtic Border; 4" . The existing phonology of English dialects compared with that of West Saxon speech . Early English Pronunciation. Vol. V. London: Trübner & Co. p. 14 [Text] 1446 [Series].