Roosevelt authorises the atomic bomb
1942 · Event
Weeks after Fermi's pile goes critical, Roosevelt signs off on full-scale production — industrial plants on a scale no one has attempted, for a weapon no one has seen, on a budget hidden from Congress. Two billion dollars and 130,000 people will follow.
On these timelines: The Manhattan Project, USA, Master
More from The Manhattan Project
- Manhattan Project (1942)
- Trinity test (first atomic bomb) (1945)
- Einstein-Szilard letter (1939)
- Los Alamos Laboratory established (1943)
- The Interim Committee recommends use (1945)
- Truman is told about the bomb (1945)
- The MAUD Report says the bomb is feasible (1941)
- Truman tells Stalin of a 'new weapon' (1945)
Around 1942
- Apartheid (1948)
- Decolonisation of Africa (1952)
- Chinese Civil War (resumed) (1945)
- Indian independence and Partition (1947)
- Korean War (1950)
- World War II (1939)
- Battle of Britain (1940)
- The Holocaust (1941)
- Battle of Stalingrad (1942)
- Spanish Civil War (1936)