1942 ⟶ Manhattan Project Officially Begins
Manhattan Engineering District is formally created, full-eff...
Year
1933
1941
1942
⚛️ Szilard Conceptualizes Nuclear Chain Reaction
Leo Szilard conceives the idea of the nuclear chain reaction.⟶
ScienceNuclear PhysicsLeo SzilardNuclear Chain ReactionResearchTechnologyAtomic BombWeaponsWorld War II
☢️ President Roosevelt Authorizes Funds for Manhattan Project
President Roosevelt authorizes $6,000 For Executive Order 8807 (Manhattan Project-Nuclear Weapons).⟶
United StatesManhattan ProjectNuclear WeaponsAtomic BombResearch and DevelopmentWorld War IIScientific AdvancementExecutive Order 8807Roosevelt
⚛️ 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
⚛️ Manhattan Project Launched
The Manhattan Project is started, the beginning of a scientific approach to nuclear weapons in the US, building on research work done in the UK.⟶
Manhattan ProjectNuclear WeaponsScientific ResearchUS HistoryMilitary TechnologyWorld War IIAtomic Bomb
☢️ 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