The three most important long-term consequences of Columbus's encounters with the Americans were slavery, spread disease through the Columbian exchange, and new rivalries in Europe. There were some positive outcomes from these things to suggest the exchange of the new exotic plants and animals.
To fight against Communist uprisings in his own country, interestingly, he worked with the U.S as they helped and supported his cause. (Pls give brainliest)
Because he was acting in a manner that would title him as being a dictator.
Egypt depended on gold from Nubia.