1933 ⟶ Szilard Conceptualizes Nuclear Chain Reaction
Leo Szilard conceives the idea of the nuclear chain reaction...Year
1933
1942
⚛️ Szilard Conceptualizes Nuclear Chain Reaction
Leo Szilard conceives the idea of the nuclear chain reaction.⟶

ScienceNuclear PhysicsLeo SzilardNuclear Chain ReactionResearchTechnologyAtomic BombWeaponsWorld War II
⚛️ Manhattan Project Officially Begins
Manhattan Engineering District is formally created, full-effort development of the atomic bomb and production of nuclear fuels is begun.⟶

Manhattan ProjectAtomic BombNuclear WeaponsUnited StatesWorld War IIScienceTechnologyWarfare
☢️ First Nuclear Chain Reaction Achieved
Below the bleachers of Stagg Field at the University of Chicago, a team led by Enrico Fermi initiates the first nuclear chain reaction. A coded message, "The Italian navigator has landed in the new world" is sent to President Roosevelt.⟶

USNuclearChain ReactionFermiManhattan ProjectScienceTechnologyWorld War IIAtomic BombChicago