The temperature on May 17, 1892 was about 9.9 °C. There was 0.8 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 86%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
June 6 » The Chicago "L" elevated rail system begins operation.
July 7 » The Katipunan is established, the discovery of which by Spanish authorities initiated the Philippine Revolution.
July 26 » Dadabhai Naoroji is elected as the first Indian Member of Parliament in Britain.
August 9 » Thomas Edison receives a patent for a two-way telegraph.
September 9 » Amalthea, third moon of Jupiter is discovered by Edward Emerson Barnard.
November 8 » The New Orleans general strike begins, uniting black and white American trade unionists in a successful four-day general strike action for the first time.
Day of marriage March 23, 1916
The temperature on March 23, 1916 was between -1.4 °C and 0.7 °C and averaged -0.1 °C. There was 2.3 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. 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.
February 3 » The Centre Block of the Parliament buildings in Ottawa, Ontario, Canada burns down with the loss of 7 lives.
February 29 » Tokelau is annexed by the United Kingdom.
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.
August 28 » World War I: Italy declares war on Germany.
October 16 » Margaret Sanger opens the first family planning clinic in the United States.
November 5 » The Kingdom of Poland is proclaimed by the Act of 5th November of the emperors of Germany and Austria-Hungary.
Day of death February 24, 1927
The temperature on February 24, 1927 was between 1.9 °C and 9.3 °C and averaged 5.2 °C. There was 5.7 mm of rain. There was 2.0 hours of sunshine (19%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southeast. Source: KNMI
March 11 » In New York City, Samuel Roxy Rothafel opens the Roxy Theatre.
May 18 » The Bath School disaster: Forty-five people, including many children, are killed by bombs planted by a disgruntled school-board member in Michigan.
June 29 » The Bird of Paradise, a U.S. Army Air Corps Fokker tri-motor, completes the first transpacific flight, from the mainland United States to Hawaii.
August 7 » The Peace Bridge opens between Fort Erie, Ontario and Buffalo, New York.
September 18 » The Columbia Broadcasting System goes on the air.
October 4 » Gutzon Borglum begins sculpting Mount Rushmore.
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/I211625.php : accessed February 13, 2026), "Pieter Helenius (1892-1927)".
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