Declaration of War
The Slovak-Hungarian War begins
Permanent historical records · Updated 2026-11-03
1939 in Hungary
Explore 10 historical events and records for Hungary in 1939.
Historical records for Hungary in 1939
Sorted by month and day. Records with no month are shown last. Showing 10 of 10 unique records.
10Unique records
1 of 1Page
10Named events on this page
5Named people on this page
3Places on this page
March
August
Einstein-Szilard Letter
Drafts a letter warning Roosevelt about uranium weapons.
Other events (month unknown)
Neutron Chain Reaction Feasibility Studied
Leo Szilard pursued experiments on neutron production and absorption with researchers at Columbia University. Its practical implications extended beyond the initial application.
Nuclear Power
Persuades Einstein to write to Roosevelt recommending US atomic weapons against Hitler. Influential in the establishment of the Manhattan Project
Pact between Germany, Italy, Japan and Hungary
Hungary joins the anti-commintern pact with Germany, Italy & Japan
Prime Minister of Hungary
Appointed Prime Minister of Hungary, 2nd term
Reform of Anti-Jewish Laws
Introduces anti-Jewish law
Resignation of Bela Imredy
Resigns after the discovery that his mother had a Jewish grandmother
String Quartet No 6
,the sadness of which has been related to the death of Bartoks mother and the looming war in Europe
Uranium Neutron Multiplication
With collaborators at Columbia, measures neutron multiplication from uranium and advances chain-reaction studies.
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.