The temperature on October 15, 1915 was between 3.4 °C and 16.1 °C and averaged 9.9 °C. There was 4.3 hours of sunshine (40%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. 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 13 » The 6.7 Mw Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
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.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
September 5 » The pacifist Zimmerwald Conference begins.
Day of marriage May 29, 1947
The temperature on May 29, 1947 was between 10.4 °C and 23.9 °C and averaged 18.3 °C. There was 14.4 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
April 9 » The Glazier–Higgins–Woodward tornadoes kill 181 and injure 970 in Texas, Oklahoma, and Kansas.
August 15 » Founder of Pakistan, Muhammad Ali Jinnah is sworn in as first Governor-General of Pakistan in Karachi.
August 17 » The Radcliffe Line, the border between the Dominions of India and Pakistan, is revealed.
November 18 » The Ballantyne's Department Store fire in Christchurch, New Zealand, kills 41; it is the worst fire disaster in the history of New Zealand.
November 20 » The Princess Elizabeth marries Lieutenant Philip Mountbatten, who becomes the Duke of Edinburgh, at Westminster Abbey in London.
November 29 » First Indochina War: French forces carry out a massacre at Mỹ Trạch, Vietnam.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I25323.php : accessed February 5, 2026), "Egberta ter Beek (1915-)".
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