The temperature on January 11, 1910 was between 3.9 °C and 8.2 °C and averaged 6.1 °C. There was 2.7 mm of rain. There was 1.1 hours of sunshine (14%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
March 28 » Henri Fabre becomes the first person to fly a seaplane, the Fabre Hydravion, after taking off from a water runway near Martigues, France.
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
April 28 » Frenchman Louis Paulhan wins the 1910 London to Manchester air race, the first long-distance aeroplane race in England.
May 4 » The Royal Canadian Navy is created.
November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.
December 21 » An underground explosion at the Hulton Bank Colliery No. 3 Pit in Over Hulton, Westhoughton, England, kills 344 miners.
Day of marriage May 25, 1935
The temperature on May 25, 1935 was between 10.6 °C and 19.6 °C and averaged 14.8 °C. There was 5.6 hours of sunshine (35%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 26 » Adolf Hitler orders the Luftwaffe to be re-formed, violating the provisions of the Treaty of Versailles.
February 26 » Robert Watson-Watt carries out a demonstration near Daventry which leads directly to the development of radar in the United Kingdom.
May 14 » The Constitution of the Philippines is ratified by a popular vote.
September 3 » Sir Malcolm Campbell reaches a speed of 304.331 miles per hour on the Bonneville Salt Flats in Utah, becoming the first person to drive an automobile over 300mph.
September 8 » US Senator from Louisiana Huey Long is fatally shot in the Louisiana State Capitol building.
December 12 » Lebensborn Project, a Nazi reproduction program, is founded by Heinrich Himmler.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I118310.php : accessed October 22, 2026), "Sietze de Haan (1910-)".
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