The key purpose of William's A Key was to
1. Provide a dictionary of the Narragansett language.
2. Provide insight into Native American culture.
A key to language of America was a book which was written by williams's A. Key in the year 1643. There were religious arguments which later characterized his writings.
In his book he explained the phrases which are used by Indians.
The intended audience of William's were potential settlers who were in England and settlers who were in the New England.