The Atlantic slave trade happened then because it was popular and everyone was doing it and there was no way to stop it. Even "biologists" of the time spread the idea that African-americans were not like white people and could therefore be enslaved. People also needed workers for colonies and for exploitation so they bought slaves by the thousands.
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The answer is C.
d. the US and Mexico never unified.
a. Had a rise of more dictators.
Either the trench(it was after all trench warfare) the first tanks, or the airplane,all were used in the war, and it was the first time any were used, including long range artillery, and flamethrowers<span />
<span>Leonardo da Vinci is the Renaissance man responsible for the ornithopter. The ornithopter is a type of aircraft whose wings flap, causing it to fly. This format mimics the natural motion of animals that fly (like bats and birds). </span>
Answer:
Roman statesman who gained fame for his selfless devotion to the republic in times of crisis and for giving up the reins of power when the crisis was over. Although he was a historical figure, his career has been much embellished by legend.
Explanation: