English, United States
American English is a set of dialects of the English language used mostly in the United States. Approximately two-thirds of the world's native speakers of English live in the United States.
English is the most widely-spoken language in the United States. English is the common language used by the federal government and is considered the de facto language of the United States due to its widespread use. English has been given official status by 30 of the 50 state governments. As an example, under federal law, English is the official language of United States courts in Puerto Rico.
The use of English in the United States is a result of British colonization. The first wave of English-speaking settlers arrived in North America during the 17th century, followed by further migrations in the 18th and 19th centuries. Since then, American English has been influenced by the languages of West Africa, the Native American population, German, Irish, Spanish, and other languages of successive waves of immigrants to the US. (Wikipedia)