The temperature on July 18, 1927 was between 11.7 °C and 15.1 °C and averaged 13.6 °C. There was 4.3 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
January 1 » New Mexican oil legislation goes into effect, leading to the formal outbreak of the Cristero War.
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
April 23 » Cardiff City defeat Arsenal in the FA Cup Final, the only time it has been won by a team not based in England.
June 27 » Prime Minister of Japan Tanaka Giichi convenes an eleven-day conference to discuss Japan's strategy in China. The Tanaka Memorial, a forged plan for world domination, is later claimed to be a secret report leaked from this conference.
July 10 » Kevin O'Higgins TD, Vice-President of the Executive Council of the Irish Free State is assassinated by the IRA.
September 7 » The first fully electronic television system is achieved by Philo Farnsworth.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I368149.php : accessed February 19, 2026), "Geert Jeuring (1927-< 2024)".
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