The temperature on January 6, 1915 was between 3.8 °C and 8.2 °C and averaged 5.8 °C. There was 0.1 mm of rain. There was 1.8 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
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.
May 27 » HMS Princess Irene exploded and sank off Sheerness, Kent with the loss of 352 lives.
July 24 » The passenger ship SSEastland capsizes while tied to a dock in the Chicago River. A total of 844 passengers and crew are killed in the largest loss of life disaster from a single shipwreck on the Great Lakes.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death February 28, 1942
The temperature on February 28, 1942 was between -8.7 °C and 2.8 °C and averaged -1.0 °C. There was 5.3 hours of sunshine (49%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
March 5 » World War II: Japanese forces capture Batavia, capital of Dutch East Indies, which is left undefended after the withdrawal of the KNIL garrison and Australian Blackforce battalion to Buitenzorg and Bandung.
May 8 » World War II: The German 11th Army begins Operation Trappenjagd (Bustard Hunt) and destroys the bridgehead of the three Soviet armies defending the Kerch Peninsula.
May 27 » World War II: In Operation Anthropoid, Reinhard Heydrich is fatally wounded in Prague; he dies of his injuries eight days later.
August 8 » Quit India Movement is launched in India against the British rule in response to Mohandas Gandhi's call for swaraj or complete independence.
September 9 » World War II: A Japanese floatplane drops incendiary bombs on Oregon.
December 22 » World War II: Adolf Hitler signs the order to develop the V-2 rocket as a weapon.
When copying data from this family tree, please include a reference to the origin: George Ingerman, "Stamboom Ingerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ingerman/I1898.php : accessed February 22, 2026), "Hendrik Willem Royaards (1915-1942)".
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