Arthur Koestler
Hungarian-British author and journalist (1905–1983)

Arthur Koestler (5 September 1905 – 1 March 1983) was an Austro-Hungarian-born author and journalist. Koestler was born in Budapest, and was educated in Austria, apart from his early school years. In 1931, Koestler joined the Communist Party of Germany but resigned in 1938 after becoming disillusioned with Stalinism.
Having moved to Britain in 1940, Koestler published his novel Darkness at Noon, an anti-totalitarian work that gained him international fame. Over the next 43 years, Koestler espoused many political causes and wrote novels, memoirs, biographies, and numerous essays. In 1949, Koestler began secretly working with a British Cold War anti-communist propaganda department known as the Information Research Department (IRD), which would republish and distribute many of his works, and also fund his activities. In 1968, he was awarded the Sonning Prize "for [his] outstanding contribution to European culture". In 1972, he was made a Commander of the Order of the British Empire (CBE).
In 1976, Koestler was diagnosed with Parkinson's disease and in 1979 with terminal leukaemia. On 1 March 1983, Koestler and his wife Cynthia died of suicide together at their London home by swallowing lethal quantities of barbiturate-based Tuinal capsules.
This brief starts where responsible research should: with the source description of “Arthur Koestler” as hungarian-British author and journalist (1905–1983). Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the people & ideas register because the source frames it as hungarian-British author and journalist (1905–1983). Its deeper value depends on whether names, dates, institutions and citations support that framing.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q78494. VIAF identifies the subject as 59084510. The Library of Congress control number is n79109681. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1905, 1983, 1931 and 1938.
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This entry incorporates text from “Arthur Koestler” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.