Declaration of War
USA declares war on Bulgaria, Hungary and Romania
Permanent historical records · Updated 2026-11-03
1942 in Hungary
Explore 10 historical events and records for Hungary in 1942.
Historical records for Hungary in 1942
Sorted by month and day. Records with no month are shown last. Showing 10 of 10 unique records.
10Unique records
1 of 1Page
7Named events on this page
4Named people on this page
1Places on this page
June
July
Manhattan Project
Robert Oppenheimer convenes a summer conference at the University of California, Berkeley to discuss the design of a fission bomb, Edward Teller brings up the possibility of a hydrogen bomb as a major point of discussion
Manhattan Project
Robert Oppenheimer convenes a summer conference at the University of California, Berkeley to discuss the design of a fission bomb, Edward Teller brings up the possibility of a hydrogen bomb as a major point of discussion
December
1st Nuclear Reactor
Present at the opening of the 1st nuclear reactor at the University of Chicago
Chicago Pile-1 Chain Reaction
Participates in the Chicago Pile-1 experiment proving a controlled self-sustaining neutron chain reaction.
First Nuclear Chain Reaction
A uranium and graphite pile achieves the first self-sustaining nuclear chain reaction.
Nuclear Power
Sees the opening of the first nuclear reactor in a squash court at the Univ of Chicago
Other events (month unknown)
Manhattan Project
Robert Oppenheimer convenes a summer conference at the University of California, Berkeley to discuss the design of a fission bomb, Edward Teller brings up the possibility of a hydrogen bomb as a major point of discussion.
Manhattan Project
Theorists Hans Bethe, John Van Vleck, Edward Teller, Felix Bloch, Emil Konopinski, Robert Serber, Stanley S. Frankel, and Eldred C. Nelson (the latter three all former students of Oppenheimer) quickly confirm that a fission bomb is feasible.
Prime Minister of Hungary
Attempts to extricate Hungary from the Nazi alliance but is imprisoned in 1944
How these records were prepared
Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.