American English (AmE, AE, AmEng, USEng, en-US), also known as United States English or U.S. English, is a set of dialects of the English language used mostly in the United States of America. It is estimated that approximately two thirds of native speakers of English live in the United States.
The use of English in the United States was inherited from British colonization. The first wave of English-speaking settlers arrived in North America in the 17th century. During that time, there were also speakers in North America of Dutch, French, German, Spanish, Swedish, Scots, Welsh, Irish, Scottish Gaelic, Finnish, as well as numerous Native American languages.