The temperature on February 21, 1915 was between -0.5 °C and 7.8 °C and averaged 3.2 °C. There was 4.1 hours of sunshine (40%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
February 12 » In Washington, D.C., the first stone of the Lincoln Memorial is put into place.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 17 » Jewish American Leo Frank is lynched in Marietta, Georgia after a 13-year-old girl is murdered.
September 25 » World War I: The Second Battle of Champagne begins.
September 30 » World War I: Radoje Ljutovac becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.
October 14 » World War I: Bulgaria joins the Central Powers.
Christening day February 22, 1915
The temperature on February 22, 1915 was between -1.4 °C and 6.9 °C and averaged 0.9 °C. There was 0.1 mm of rain. There was 3.0 hours of sunshine (29%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 17 » Russia defeats Ottoman Turkey in the Battle of Sarikamish during the Caucasus Campaign of World War I.
January 24 » World War I: British Grand Fleet battle cruisers under Vice-Admiral Sir David Beatty engage Rear-Admiral Franz von Hipper's battle cruisers in the Battle of Dogger Bank.
June 5 » Denmark amends its constitution to allow women's suffrage.
July 25 » RFC Captain Lanoe Hawker becomes the first British pursuit aviator to earn the Victoria Cross.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
October 14 » World War I: Bulgaria joins the Central Powers.
Day of death September 15, 1970
The temperature on September 15, 1970 was between 13.5 °C and 20.6 °C and averaged 16.5 °C. There was 11.8 mm of rain during 4.7 hours. There was 3.3 hours of sunshine (26%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 6 » An explosion at the Weather Underground safe house in Greenwich Village kills three.
April 1 » President Richard Nixon signs the Public Health Cigarette Smoking Act into law, requiring the Surgeon General's warnings on tobacco products and banning cigarette advertising on television and radio in the United States, effective 1 January 1971.
April 6 » Newhall massacre: Four California Highway Patrol officers are killed in a shootout.
September 4 » Salvador Allende is elected President of Chile.
November 25 » In Japan, author Yukio Mishima and one compatriot commit ritualistic seppuku after an unsuccessful coup attempt.
December 2 » The United States Environmental Protection Agency begins operations.
Day of burial September 18, 1970
The temperature on September 18, 1970 was between 8.2 °C and 21.3 °C and averaged 13.8 °C. There was 10.0 hours of sunshine (80%). The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Theo Kelner, "Family tree Kelner", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kelner/I315.php : accessed February 16, 2026), "Hendrikus Antonius "Henk" Ory (1915-1970)".
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