Plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World in the 15th and 16th centuries
Answer:
A President Truman learned of the success of the Manhattan Project
Explanation:
American President Harry Truman made the decision to use the devastating atomic bomb on Japan as a direct response to the Pear Harbor attack on American soil.
The direct result of this was that the Japanese gave their unconditional surrender and the war was ended.
However, the indirect result of the decision to drop the atomic bomb was that President Truman learned of the success of the Manhattan project which was the atomic bomb.
<span>C) the invasion of Poland
It happened in 1939, before all of the other events.
Hope this helps :)</span>
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