what was one of the far reaching effects that the Europeans had on the people of Mesoamerica and south america

one of the far-reaching effects that the European conquistadors had on the people of Mesoamerica and south America is : majority of the people in central America and South America speak Spanish today

If we count by the number of speakers alone,  currently Spanish language has 80,000,000 more speakers than English speakers

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c, they united with once

d) post-world war i