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Robert Oppenheimer using the atomic bomb for world war two.
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Plutonium is the chemical element of atomic number 94
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FDR Approves Building an Atomic Bomb
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atomic bomb targeted for four cities
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first atomic bomb dropped in Hiroshima
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Atomic bombs are used for war
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The second atomic bomb dropped on nagaski
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.