The temperature on June 30, 1915 was between 12.2 °C and 20.2 °C and averaged 15.7 °C. There was 1.3 mm of rain. There was 2.6 hours of sunshine (16%). 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.
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.
January 22 » Over 600 people are killed in Guadalajara, Mexico, when a train plunges off the tracks into a deep canyon.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
April 25 » World War I: The Battle of Gallipoli begins: The invasion of the Turkish Gallipoli Peninsula by British, French, Indian, Newfoundland, Australian and New Zealand troops, begins with landings at Anzac Cove and Cape Helles.
May 23 » World War I: Italy joins the Allies, fulfilling its part of the Treaty of London.
Day of marriage June 20, 1940
The temperature on June 20, 1940 was between 10.8 °C and 22.7 °C and averaged 17.0 °C. There was 15.2 hours of sunshine (91%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 13 » Queen Wilhelmina of the Netherlands flees her country to Great Britain after the German invasion. Princess Juliana takes her children to Canada for their safety.
June 7 » King Haakon VII, Crown Prince Olav and the Norwegian government leave Tromsø and go into exile in London. They return exactly five years later.
June 10 » World War II: Military resistance to the German occupation of Norway ends.
August 25 » World War II: The first Bombing of Berlin by the British Royal Air Force.
September 7 » Romania returns Southern Dobruja to Bulgaria under the Treaty of Craiova.
September 17 » World War II: Due to setbacks in the Battle of Britain and approaching autumn weather, Hitler postpones Operation Sea Lion.
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/I119660.php : accessed October 21, 2026), "Geeske van der Heide (1915-)".
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