A purple stone traded by ancient merchants in eastern Oklahoma was the obsidian.
In ancient times, pre-Columbian civilizations like the Mayans used obsidian for many purposes, including to make tools and weapons (arrowheads, blades, etc.), as well as ritual and ceremonial objects (for burials for example).
There is believed to have been obsidian trade routes all throughout the American continent, even though obsidian does not itself originate in Oklahoma.
Very overcrowded Rio de Janeiro. Also to encourage development in the interior.
The answer is vernacular culture region. Vernacular, well known or perceptual social locales are those apparent to exist by their tenants, as is clear by the broad acknowledgment and utilization of an unmistakable territorial name. It becomes out of individuals' feeling of having a place and distinguishing proof with a specific district.
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Three branches of government
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