The temperature on November 22, 1909 was between -3.1 and 3.1 °C. There was 1.1 mm of rain. There was 3.6 hours of sunshine (42%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
July 16 » Persian Constitutional Revolution: Mohammad Ali Shah Qajar is forced out as Shah of Persia and is replaced by his son Ahmad Shah Qajar.
August 28 » A group of mid-level Greek Army officers launches the Goudi coup, seeking wide-ranging reforms.
August 30 » Burgess Shale fossils are discovered by Charles Doolittle Walcott.
October 26 » An Jung-geun assassinates Japan's Resident-General of Korea.
Day of marriage May 18, 1938
The temperature on May 18, 1938 was between 7.2 °C and 11.4 °C and averaged 9.4 °C. There was 3.4 mm of rain during 6.5 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
July 10 » Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
September 5 » Chile: A group of youths affiliated with the fascist National Socialist Movement of Chile are executed after surrendering during a failed coup.
September 23 » The Czechoslovak army is mobilized in response to the Munich Agreement.
October 14 » The first flight of the Curtiss P-40 Warhawk fighter plane.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
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/I118217.php : accessed February 16, 2026), "Siebren Nijdam (1909-)".
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