Question

By 1992, historical accounts of Columbus’s “discovery” of America differed markedly from those written in 1892, although few “new” facts about Columbus had been unearthed. Explain at least three changes in perspective that led to historians’ altered assessments.

Answer 1

"changes in perspective"

This is the basis of the question you need to answer. In other words, how did people in 1992 (and today, to be sure) impose their values on the actions of someone who lived in 1892 ... or even 1492?

Answer 2

So Columbus "discovered" America?? In 1500, North and South America had a larger population than Europe!

http://www.english-online.at/geography/world-population/world-population-distribution-by-continent.gif