I believe the answer would be cotton gin because the invention of the cotton gin was able to become more efficient in harvesting cotton.
Answer: Combatants: Soviet Union; United States
Explanation:Historians have identified several causes that led to the outbreak of the Cold War, including: tensions between the two nations at the end of World War II, the ideological conflict between both the United States and the Soviet Union, the emergence of nuclear weapons, and the fear of communism in the United States.
the french monarchy lost power
