The temperature on May 13, 1910 was between 3.9 °C and 18.7 °C and averaged 12.4 °C. There was 12.6 hours of sunshine (81%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
March 1 » The deadliest avalanche in United States history buries a Great Northern Railway train in northeastern King County, Washington, killing 96 people.
April 12 » SMSZrínyi, one of the last pre-dreadnought battleships built by the Austro-Hungarian Navy, is launched.
May 6 » George V becomes King of Great Britain, Ireland, and many overseas territories, on the death of his father, Edward VII.
July 16 » John Robertson Duigan makes the first flight of the Duigan pusher biplane, the first aircraft built in Australia.
October 22 » Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
Day of death May 7, 1964
The temperature on May 7, 1964 was between 11.0 °C and 21.5 °C and averaged 15.4 °C. There was 1.1 mm of rain during 0.9 hours. There was 1.1 hours of sunshine (7%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 11 » Brazilian Marshal Humberto de Alencar Castelo Branco is elected President by the National Congress.
May 20 » Discovery of the cosmic microwave background radiation by Robert Woodrow Wilson and Arno Penzias.
July 20 » Vietnam War: Viet Cong forces attack the capital of Định Tường Province, Cái Bè, killing 11 South Vietnamese military personnel and 40 civilians (30 of whom are children).
October 22 » Jean-Paul Sartre is awarded the Nobel Prize in Literature, but turns down the honor.
November 28 » Vietnam War: National Security Council members agree to recommend that U.S. President Lyndon B. Johnson adopt a plan for a two-stage escalation of bombing in North Vietnam.
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/I80345.php : accessed October 1, 2026), "Sytze Hellinga (1910-1964)".
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