Answer:
The dropping of the atomic bombs on Hiroshima and Nagasaki happened on the 2nd World War.
Explanation:
<em>In 1945, the Pacific War between the Empire of Japan and the Allies entered its fourth year. This war was the result of the pearl harbour incident and thus on August 6 and 9, 1945, United States bombed Hiroshima and Nagasaki, respectively.</em>
The Louisiana purchase
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Geography played a critical role in the economic development of New York, Boston, and Charleston, since all of these cities were located on the Atlantic Ocean and had protected harbors, that allowed for unprecedented levels of trade with both other states and other nations.