One impact of the growth of English has been to reduce native linguistic diversity in many parts of the world, and its influence continues to play an important role in language attrition. Conversely the natural internal variety of English along with creoles and pidgins have the potential to produce new distinct languages from English over time.
Main article: History of the English language
English is a West Germanic language that originated from the Anglo-Frisian and Old Saxon dialects brought to Britain by Germanic settlers from various parts of what is now northwest Germany, Denmark and the Netherlands in the 5th century. Up to that point, in Roman Britain the native population is assumed to have spoken the Celtic language Brythonic alongside the acrolectal influence of Latin, from the 400-year Roman occupation.
One of these incoming Germanic tribes was the Angles, whom Bede believed to have relocated entirely to Britain. The names 'England' (from Engla land "Land of the Angles") and English (Old