The temperature on February 14, 1915 was between 4.2 °C and 6.4 °C and averaged 5.2 °C. There was 7.4 mm of rain. The average windspeed was 6 Bft (strong wind) and was prevailing from the south. 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 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.
April 5 » Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
May 7 » World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many former pro-Germans in the United States against the German Empire.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
Day of marriage April 7, 1943
The temperature on April 7, 1943 was between 0.6 °C and 11.9 °C and averaged 5.3 °C. There was 9.7 mm of rain during 7.1 hours. There was 1.0 hours of sunshine (8%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 11 » The Republic of China agrees to the Sino-British New Equal Treaty and the Sino-American New Equal Treaty.
August 27 » World War II: Japanese forces evacuate New Georgia Island in the Pacific Theater of Operations during World War II.
October 1 » World War II: After the Four Days of Naples, Allied troops enter the city.
November 22 » Lebanon gains independence from France.
December 2 » World War II: A Luftwaffe bombing raid on the harbour of Bari, Italy, sinks numerous cargo and transport ships, including the American SSJohn Harvey, which is carrying a stockpile of World War I-era mustard gas.
December 28 » World War II: After eight days of brutal house-to-house fighting, the Battle of Ortona concludes with the victory of the 1st Canadian Infantry Division over the German 1st Parachute Division and the capture of the Italian town of Ortona.
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/I139024.php : accessed October 24, 2026), "Jan Heikamp (1915-)".
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