English is one of the official languages of United Nations as well as an actual international language. English belongs to the West Germanic branch, which is an affiliation of the Middle Germanic branch of Indo-European family. Through the colonialism of Britain, English is spread around the world. Due to the contiguity with different ethnic languages in the history, its vocabulary has been diversified; its grammar simplified; its intonation altered into a specific pattern. In accordance with the total number of English natives, English might be the third widely-used language in the world, despite the fact that it is the most popular second language worldwide. More than sixty percent of the letters in the world are written in English. Moreover, over the last two centuries, the leading positions in cultures, economies, military, politics and science had almost made English an International language.
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