1948 the united kingdom publicly announced that it was independen 05 12
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1948 78 years ago Selected Events May 12 2 sources

The United Kingdom publicly announced that it was independently developing nuclear weapons, after the US Atomic Energy Act of 1946 ended cooperation on the matter.

On May 12, in the year 1948, The United Kingdom publicly announced that it was independently developing nuclear weapons, after the US Atomic Energy Act of 1946 ended cooperation on the matter. This event is recorded as a Selected Events event in the history of May 12, a notable event in this corner of history.

High Explosive Research (HER) was the British project to develop atomic bombs independently after the Second World War. This decision was taken by a cabinet sub-committee on 8 January 1947, in response to apprehension of an American return to isolationism, fears that Britain might lose its great power status, and the actions by the United States to withdraw unilaterally from sharing of nuclear technology under the 1943 Quebec Agreement. The decision was publicly announced in the House of Commons on 12 May 1948.

Key Facts

  • This event took place on May 12, 1948 (AD era).
  • It is categorised as a Selected Events event in recorded history.
  • Referenced in 2 Wikipedia articles.
  • Wikipedia source last updated on 12 March 2026.

On This Date in History

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Selected Events 2022 May 12 The Event Horizon Telescope released the first image of Sagittarius A*
Notable Deaths 2020 May 12 Aimee Stephens, American funeral director and U
Historical Events 2018 May 12 Paris knife attack: A man is fatally shot by police in Paris after killing one and injuring several others
Notable Deaths 2018 May 12 Dennis Nilsen, Scottish serial killer (born 1945)
Historical Events 2017 May 12 The WannaCry ransomware attack impacts over 400,000 computers worldwide, targeting computers of the United Kingdom's Nat
Notable Deaths 2017 May 12 Mauno Koivisto, Finnish banker and politician, ninth President of Finland (born 1923)
Selected Events 2017 May 12 The WannaCry ransomware attack affected more than 400,000 computers worldwide, including systems used by the National He
Notable Deaths 2016 May 12 Mike Agostini, Trinidadian sprinter (born 1935)
Historical Events 2015 May 12 A train derailment in Philadelphia, United States, kills eight people and injures more than 200
Historical Events 2015 May 12 Massive Nepal earthquake kills 218 people and injures more than 3,500
Notable Deaths 2015 May 12 Peter Gay, German-American historian, author, and academic (born 1923)
Selected Events 2015 May 12 An earthquake in Nepal killed 218 people and injured more than 3,500 others
Selected Events 2015 May 12 A train derailment killed eight people and injured more than 200 others in Philadelphia
Notable Deaths 2014 May 12 Cornell Borchers, Lithuanian-German actress and singer (born 1925)
Notable Deaths 2014 May 12 Marco Cé, Italian cardinal (born 1925)
Notable Deaths 2014 May 12 H
Notable Deaths 2014 May 12 Sarat Pujari, Indian actor, director, and screenwriter (born 1934)
Notable Deaths 2014 May 12 Lorenzo Zambrano, Mexican businessman and philanthropist (born 1944)
Notable Deaths 2013 May 12 Gerd Langguth, German political scientist, author, and academic (born 1946)
Notable Deaths 2012 May 12 Jan Bens, Dutch footballer and coach (born 1921)
Notable Deaths 2012 May 12 Eddy Paape, Belgian illustrator (born 1920)
Historical Events 2010 May 12 Afriqiyah Airways Flight 771 crashes on final approach to Tripoli International Airport in Tripoli, Libya, killing 103 o
Selected Events 2010 May 12 On arrival at Tripoli International Airport, Afriqiyah Airways Flight 771 crashed into the ground at a speed of 262 kn (
Notable Deaths 2009 May 12 Antonio Vega, Spanish singer-songwriter and guitarist (born 1957)
Historical Events 2008 May 12 An earthquake (measuring around 8
Historical Events 2008 May 12 U
Notable Deaths 2008 May 12 Robert Rauschenberg, American painter and illustrator (born 1925)
Notable Deaths 2008 May 12 Irena Sendler, Polish nurse and humanitarian (born 1910)
Selected Events 2008 May 12 In Postville, Iowa, U
Historical Events 2006 May 12 Mass unrest by the Primeiro Comando da Capital begins in São Paulo (Brazil), leaving at least 150 dead
Historical Events 2006 May 12 Iranian Azeris interpret a cartoon published in an Iranian magazine as insulting, resulting in massive riots throughout
Notable Births 2006 May 12 Vasilije Adžić, Montenegrin footballer
Notable Deaths 2006 May 12 Hussein Maziq, Libyan politician, Prime Minister of Libya (born 1918)
Notable Births 2005 May 12 Zach Benson, Canadian ice hockey player
Notable Deaths 2005 May 12 Ömer Kavur, Turkish director, producer, and screenwriter (born 1944)
Notable Deaths 2005 May 12 Martin Lings, English author and scholar (born 1909)
Notable Deaths 2005 May 12 Kai Setälä, Finnish physician and professor (born 1913)
Notable Deaths 2005 May 12 Monica Zetterlund, Swedish actress (born 1937)
Historical Events 2003 May 12 The Riyadh compound bombings in Saudi Arabia, carried out by al-Qaeda, kill 39 people
Notable Deaths 2003 May 12 Prince Sadruddin Aga Khan, French-American diplomat (born 1933)
Historical Events 2002 May 12 Former US President Jimmy Carter arrives in Cuba for a five-day visit with Fidel Castro, becoming the first President of
Notable Births 2001 May 12 Issa Kaboré, Burkinabé footballer
Notable Deaths 2001 May 12 Perry Como, American singer and television host (born 1912)
Notable Deaths 2001 May 12 Didi, Brazilian footballer (born 1928)
Notable Deaths 2001 May 12 Alexei Tupolev, Russian engineer, designed the Tupolev Tu-144 (born 1925)
Notable Deaths 2000 May 12 Adam Petty, American race car driver (born 1980)

This article draws on content from Wikipedia, available under CC BY-SA 4.0.

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