Is it the US Canada border? I don't quite understand the question, sorry.<span />
Answer:
hope this is right and helpful
Explanation:
The "Clovis first theory" refers to the 1950s hypothesis that the Clovis culture represents the earliest human presence in the Americas, beginning about 13,000 years ago; evidence of pre-Clovis cultures has accumulated since 2000, pushing back the possible date of the first peopling of the Americas to 33,000 years ago.
El Alhambre a major region for trade