Archimedes Archimedes of Syracuse (Greek: Ἀρχιμήδης; c. 287 BC-c. 212 BC)
Explanation:
The Harlem Hellfighters were an African-American infantry unit in WWI who spent more time in combat than any other American unit. Despite their courage, sacrifice and dedication to their country, they returned home to face racism and segregation from their fellow countrymen.
The correct answer is <u><em>placer mining</em></u>
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They resented second class status and wanted more power , felt as if they were being overlooked , they wanted to be the ruling class
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