Anthropologist because they study why people behave the way they do in certain events
Answer: The Americas brought gold, silver, corn, potatoes, pineapples, tomatoes, tobacco, beans, vanilla, chocolate, and Syphilis to Europe.
Slavery, and invention of the cotton gin, the internal conflict within the Congress
Answer:I
If you mean by 21st century then, having awesome medical people
Explanation:
A lot of contries don't have a lot of medical staff, but the US has hired very good medical staff.
