HST176 American History to 1865

List four (4) of the major Mesoamerican and South American civilizations and discuss their accomplishments/achievements that flourished before the arrival of Columbus and other Spanish explorers. 

 For full credit on this and future discussion boards:1. Write an initial response of at least two paragraphs that includes properly attributed and cited (APA format) references to the text or other researched material.2. Include a works cited reference in APA format.

Please write this casually with 300 words.