The temperature on August 27, 1916 was between 14.3 °C and 20.2 °C and averaged 16.7 °C. There was 7.8 mm of rain. There was 7.4 hours of sunshine (53%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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 20 » The Chicago Cubs play their first game at Weeghman Park (currently Wrigley Field), defeating the Cincinnati Reds 7–6 in 11 innings.
May 16 » The United Kingdom of Great Britain and Ireland and the French Third Republic sign the secret wartime Sykes-Picot Agreement partitioning former Ottoman territories such as Iraq and Syria.
June 5 » Louis Brandeis is sworn in as a Justice of the United States Supreme Court; he is the first American Jew to hold such a position.
September 7 » US federal employees win the right to Workers' compensation by Federal Employers Liability Act (39 Stat. 742; 5 U.S.C. 751)
November 5 » The Kingdom of Poland is proclaimed by the Act of 5th November of the emperors of Germany and Austria-Hungary.
December 30 » The last coronation in Hungary is performed for King Charles IV and Queen Zita.
Day of marriage April 30, 1940
The temperature on April 30, 1940 was between 7.6 °C and 18.7 °C and averaged 13.2 °C. There was 11.0 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
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.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 9 » World War II: The German submarine U-9 sinks the French coastal submarine Doris near Den Helder.
May 24 » Acting on the orders of Soviet leader Joseph Stalin, NKVD agent Iosif Grigulevich orchestrates an unsuccessful assassination attempt on exiled Russian revolutionary Leon Trotsky in Coyoacán, Mexico.
July 2 » Indian independence leader Subhas Chandra Bose is arrested and detained in Calcutta.
September 12 » Cave paintings are discovered in Lascaux, France.
September 18 » World War II: The British liner SSCity of Benares is sunk by German submarine U-48; those killed include 77 child refugees.
November 11 » World War II: In the Battle of Taranto, the Royal Navy launches the first all-aircraft ship-to-ship naval attack in history.
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/I211624.php : accessed February 13, 2026), "Jan Kornelis Helenius (1916-)".
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