Answer:
Theodore Roosevelt's Corollary to the Monroe Doctrine (1905)
The corollary stated that not only were the nations of the Western Hemisphere not open to colonization by European powers, but that the United States had the responsibility to preserve order and protect life and property in those countries.
Explanation:
Answer: Cowry shells are believed to have been the earliest form of currency used in Central China, and were used during the Neolithic period. Around 210 BC, the first emperor of China Qin Shi Huang (260–210 BC) abolished all other forms of local currency and introduced a uniform copper coin.
It led to the start of world war 1. Archduke Ferdinand was from the Balkans which was known as the "powder keg" of Europe during this time period.
