Carlos Scharff
... that rubber barons like Carlos Scharff enslaved indigenous populations in the Upper Amazon region during the rubber boom as a workforce for latex collection?
... that rubber barons like <b id="mwTQ"><a href="./Carlos_Scharff" id="mwTg" rel="mw:WikiLink" title="Carlos Scharff">Carlos Scharff</a></b> enslaved <a href="./Indigenous_peoples_of_South_America" id="mwTw" rel="mw:WikiLink" title="Indigenous peoples of South America">indigenous populations</a> in the Upper Amazon region during the <a href="./Amazon_rubber_cycle" id="mwUA" rel="mw:WikiLink" title="Amazon rubber cycle">rubber boom</a> as a workforce for <a href="./Natural_rubber" id="mwUQ" rel="mw:WikiLink" title="Natural rubber">latex</a> collection?