Baugh et al (2002) have explained the idea that today's English language is resulted from centuries of political development and social events which affected the English history and as a result they had an impact on the English language. The history of the English language can be summarized in four phases of evolution: Old English, Middle English, Early Modern English, and Present-Day English. Old English is the language used between 450 AD and 1100 AD, the period from 1100 to 1500 is Middle English, Early Modern English was used between 1500 and 1800, and the period since 1800 is Present-Day English. The Roman conversion of the church of Britain in 597 AD, made contact between England and Latin civilization and made some additions to vocabulary.