Statistics for occurrence #1 of “Gulf of Mexico” in entry indians-american of Harper's Encyclopedia of United States History:

...a domain next in extent to that of the Algonquians. It stretched along the Atlantic coast from the mouth of the Cape Fear River to the extremity of the Florida peninsula, and westward along the Gulf of Mexico about 600 miles to the Mississippi River. They also held jurisdiction up that stream as far as the mouth of the Ohio. The domain included parts of South Carolina, the whole of Florida, Alabama, a...
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Entity Corpus Doc Corpus Doc  
Gulf of Mexico 1,062 148 0 0 0 user votes

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