Olivia Twenty Dahl was the oldest child of the author Roald Dahl and the American actress Patricia Neal. She died at the age of seven from encephalitis caused by measles, before a vaccine against the disease had been developed. Roald Dahl's books James and the Giant Peach (1961) and The BFG (1982) were dedicated to Olivia. As a result of her death, her father Roald became an advocate for vaccination and wrote the pamphlet "Measles: A Dangerous Illness" in 1988.
Olivia Dahl (died 1962), daughter of Roald Dahl and Patricia Neal
Olivia Dahl (died 1962), daughter of Roald Dahl and Patricia Neal
On April 20, in the year 1955, Olivia Dahl (died 1962), daughter of Roald Dahl and Patricia Neal. This event is recorded as a Notable Births event in the history of April 20, one of 323 recorded events on this date across all of history.
1 notable person is associated with this event, including Olivia Dahl. Learn more below.
Key Facts
- This event took place on April 20, 1955 (AD era).
- It is categorised as a Notable Births event in recorded history.
- Referenced in 3 Wikipedia articles.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 15 April 2026.
On This Date in History 323
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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