The temperature on May 3, 1912 was between 5.1 °C and 14.5 °C and averaged 10.7 °C. There was 0.6 mm of rain. There was 4.3 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 11 » Immigrant textile workers in Lawrence, Massachusetts, go on strike when wages are reduced in response to a mandated shortening of the work week.
February 12 » The Xuantong Emperor, the last Emperor of China, abdicates.
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
April 2 » The ill-fated RMSTitanic begins sea trials.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
Day of marriage May 30, 1936
The temperature on May 30, 1936 was between 5.8 °C and 14.8 °C and averaged 10.6 °C. There was 2.7 mm of rain during 2.3 hours. There was 2.0 hours of sunshine (12%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 20 » King George V of the United Kingdom dies. His eldest son succeeds to the throne, becoming Edward VIII. The title Prince of Wales is not used for another 22 years.
May 26 » In the House of Commons of Northern Ireland, Tommy Henderson begins speaking on the Appropriation Bill. By the time he sits down in the early hours of the following morning, he had spoken for ten hours.
July 18 » On the Spanish mainland, a faction of the army supported by fascists, rises up against the Second Spanish Republic in a coup d'état starting the 3-year-long Civil War, resulting in the longest dictatorship in modern European history.
August 9 » Summer Olympic Games: Games of the XI Olympiad: Jesse Owens wins his fourth gold medal at the games.
September 6 » Spanish Civil War: The Interprovincial Council of Asturias and León is established.
November 2 » The British Broadcasting Corporation initiates the BBC Television Service, the world's first regular, "high-definition" (then defined as at least 200 lines) service. Renamed BBC1 in 1964, the channel still runs to this day.
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/I105083.php : accessed January 19, 2026), "Johannes Gerhardus Hartman (1912-)".
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