Answer: Zheng He led China to become the superpower of the Indian Ocean, considered to be “the world's most important crossroads of trade”, in the 15th century.
Explanation:
Nuclear test ban treaty and the non proliferation treaty
Answer: The map of Europe and the distribution of power in 1871 was very different from that devised at Vienna in 1814–15.
Explanation:
I think is either A or B i hope this helps!:)