1492 is the correct answer.
Answer:
The Manhattan Project was a secret military project created in 1942 to produce the first US nuclear weapon. Fears that Nazi Germany would build and use a nuclear weapon during World War II triggered the start of the Manhattan Project, which was originally based in Manhattan, New York.
I know Smallpox weakened the Aztecs' ability to resist, I'm not sure about the others.
Manorial system is a political, economic, and social system by which the peasants of medieval Europe were rendered dependent on their land and on their lord.
The Puritans won the puritan vs. royalist war
