Native Americans are members of aboriginal tribes in North, Central, and South America. They are also called American Indians, whose occupation preceded European explorations. European settlement in the Americas resulted in the creation of two central lands inhabited by many people. Native people were divided into hundreds of tribes or groups occupying the Western and Southern hemispheres. They practiced various domestic trends ranging from hunting and gathering to intensive agriculture. Several diverse ethnic groups spoke different languages, conformed to different cultural systems, and organized into various economic and social forms,