The temperature on August 28, 1911 was between 13.1 °C and 26.0 °C and averaged 19.0 °C. There was 11.4 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
Day of marriage April 30, 1936
The temperature on April 30, 1936 was between 6.0 °C and 12.6 °C and averaged 8.6 °C. There was 4.8 hours of sunshine (32%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 27 » The United Auto Workers (UAW) gains autonomy from the American Federation of Labor.
May 28 » Alan Turing submits On Computable Numbers for publication.
June 28 » The Japanese puppet state of Mengjiang is formed in northern China.
July 21 » Spanish Civil War: The Central Committee of Antifascist Militias of Catalonia is constituted, establishing an anarcho-syndicalist economy in Catalonia.
September 10 » First World Individual Motorcycle Speedway Championship, Held at London's (England) Wembley Stadium
October 5 » The Jarrow March sets off for London.
Day of death March 31, 1956
The temperature on March 31, 1956 was between 3.9 °C and 11.4 °C and averaged 6.9 °C. There was 0.1 mm of rain during 0.4 hours. There was 2.4 hours of sunshine (19%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
March 23 » Pakistan becomes the first Islamic republic in the world. This date is now celebrated as Republic Day in Pakistan.
May 1 » The polio vaccine developed by Jonas Salk is made available to the public.
October 26 » Hungarian Revolution: In the towns of Mosonmagyaróvár and Esztergom, Hungarian secret police forces massacre civilians. As rebel strongholds in Budapest hold, fighting spreads throughout the country.
November 1 » The Springhill mining disaster in Springhill, Nova Scotia kills 39 miners; 88 are rescued.
December 6 » A violent water polo match between Hungary and the USSR takes place during the 1956 Summer Olympics in Melbourne, against the backdrop of the Hungarian Revolution of 1956.
December 19 » Irish-born physician John Bodkin Adams is arrested in connection with the suspicious deaths of more than 160 patients. Eventually he is convicted only of minor charges.
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/I488367.php : accessed March 8, 2026), "John Folkersma (1911-1956)".
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