What was the date that the date of the second atomic bomb was dropped on Japan

On August 9, 1945, a second atom bomb is dropped on Japan by the United States, at Nagasaki, resulting finally in Japan's unconditional surrender.

Explanation:

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i think it was   tsar alexander ii

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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i googled "who was kolson johanson" and this is the answer i found.

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