What were indigenous communities like before the Columbian Exchange?

Prior to contact, indigenous populations thrived across North and South America. There were millions of people (approximately 35-75 million) 2 living in the Americas, some of whom lived in large urban areas like Tenochtitlan and Cusco, among the largest cities in the world at the time.

Explanation:

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

where is thing if you show me on the map or have a map i can answer your question