Virginia plan advocated two legislative houses of which membership would be based on population. New Jersey plan advocated one legislative house, membership in which would be equal for all states.
Assuming the diplomats you are referring to are Benjamin Franklin, John Jay, and John Adams, the correct answer is John Adams.
He was the second president of the United States in America, right after George Washington. Franklin and Jay, even though they were influential politicians and diplomats, never became presidents.
The event that caused the greatest human loss was when napoleon invaded russia
He declared war because the American "Infidels" invaded the Holy Land. He meant that because of the American occupation of Iraq and because it also occupied surrounding areas. So that's why he believed that he was in a "Holy" war to get the Holy Land back.