The correct option is:
B) Many workers were killed or sickened by malaria and yellow fever carried by mosquitoes.
When the United States gained control of the Panama Canal project (1904) the Isthmus of Panama was known for its tropical diseases. More than 22,000 deaths had occurred during the French effort to build a canal, especially due to yellow fever and malaria. It was later established that the poor living conditions of the workers included pools of standing water where mosquitoes were breeding and spreading disease.
Answer: C
Explanation:
Berbers as they inhabited (and still inhabit) the Sahara trade route which brought goods from West Africa to North African states like Morocco or the Mamluk Sultanate (Egypt)
It occurred during the Roman crisis of the III century which made cities really unsafe, which in turn made people vanish from the cities and many people broken.
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The Democratic-Republican Party was an American political party formed by « Thomas Jefferson » and « James Madison » around 1792 to oppose the centralizing policies of the new Federalist Party run by « Alexander Hamilton », who was secretary of the treasury and chief architect of George Washington's administration.
