The temperature on May 7, 1912 was between 8.6 °C and 15.8 °C and averaged 12.6 °C. There was 0.9 mm of rain. There was 0.6 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
May 13 » The Royal Flying Corps, the forerunner of the Royal Air Force, is established in the United Kingdom.
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
November 12 » King George I of Greece makes a triumphal entry into Thessaloniki after its liberation from 482 years of Ottoman rule.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
Day of marriage September 12, 1939
The temperature on September 12, 1939 was between 12.8 °C and 16.7 °C and averaged 14.2 °C. There was 28.0 mm of rain during 7.3 hours. There was 0.5 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. 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.
August 23 » World War II: Nazi Germany and the Soviet Union sign a non-aggression treaty, the Molotov–Ribbentrop Pact. In a secret addition to the pact, the Baltic states, Finland, Romania, and Poland are divided between the two nations.
August 31 » Nazi Germany mounts a false flag attack on the Gleiwitz radio station, creating an excuse to attack Poland the following day, thus starting World War II in Europe.
September 17 » World War II: German submarineU-29 sinks the British aircraft carrier HMSCourageous.
September 18 » World War II: The Polish government of Ignacy Mościcki flees to Romania.
December 27 » The 7.8 Mw Erzincan earthquake shakes eastern Turkey with a maximum Mercalli intensity of XI (Extreme). At least 32,700 people were killed.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I72151.php : accessed March 6, 2026), "Gijsbert van Malsen (1912-)".
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