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Concept of Nuclear Bombs
Leó Szilárd realizes the concept of the nuclear weapon -
Nazi think nuclear
Nazi Germany investigating making nuclear weapons -
USA think nuclear
The USA being investigating the possibly of making a nuclear weapon -
Pearl Harbour
The Japanese attack Pearl Harbor, the beginning of USA in the war -
USSR think nuclear
The USSR also start researching nuclear bombs -
The Manhattan Project
The Manhattan Project is created and is in charge of making the atomic bomb -
Japanese start to think nuclear
The Japanese also start to think about making an atomic bomb -
Germany surrenders
Nazi Germany surrenders, the end of World War II in Europe. -
Test of Bomb
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Hiroshima
"Little Boy", a gun-type uranium-235 weapon, is dropped on Hiroshima, Japan. -
Nagasaki
"Fat Man", a implosion-type plutonium-239 weapon, is dropped on Nagasaki, Japan. -
Japan surrender
