The temperature on August 30, 1912 was between 11.9 °C and 18.4 °C and averaged 14.4 °C. There was 8.5 mm of rain. There was 0.2 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
April 18 » The Cunard liner RMSCarpathia brings 705 survivors from the RMSTitanic to New York City.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
Day of marriage May 23, 1939
The temperature on May 23, 1939 was between 7.6 °C and 22.3 °C and averaged 15.6 °C. There was 13.1 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
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.
September 9 » Burmese national hero U Ottama dies in prison after a hunger strike to protest Britain's colonial government.
September 10 » World War II: The submarine HMSOxley is mistakenly sunk by the submarine HMSTriton near Norway and becomes the Royal Navy's first loss of a submarine in the war.
October 1 » World War II: After a one-month siege, German troops occupy Warsaw.
October 6 » World War II: The Battle of Kock is the final combat of the September Campaign in Poland.
December 4 » World War II: HMSNelson is struck by a mine (laid by U-31) off the Scottish coast and is laid up for repairs until August 1940.
December 12 » HMSDuchess sinks after a collision with HMSBarham off the coast of Scotland with the loss of 124 men.
Day of death February 21, 1999
The temperature on February 21, 1999 was between 3.5 °C and 7.8 °C and averaged 5.6 °C. There was 6.3 mm of rain during 4.9 hours. There was 0.3 hours of sunshine (3%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
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/I100774.php : accessed October 18, 2026), "Wiebrand Medendorp (1912-1999)".
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