Answer:
The Columbian exchange, also known as the Columbian interchange, named after Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, diseases, and ideas between the Americas, the Old World, and West Africa in the 15th and 16th centuries.
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Explanation:
These people are called demographers, and their study is called demography.
Answer:
the imperial clan
Explanation:
he exercised political leadership from the end of the 6tb century to the begining of 7th century
Answer: It's the American army during the American Revolution.
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