One way to compare and contrast South America in 1790 to South America in 1828 is that in 1790, most of South America was under colonial rule but by 1828, most of South America had gained their independence.
Most of the regions in South America would be independent by the year 1828 including places like Brazil, Bolivia, Columbia, and Peru. This was mostly as a result of Revolutionary wars fought between the colonies and the Spanish government.
The reason why these wars were successful was because Spain was being distracted in Europe by the invasion of Spain by Napoleon's France. And so it went that even though in 1790 most of South America was under the Spanish, things had changed drastically by 1828.
Find out more on Latin American independence at https://brainly.com/question/14067921
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