The temperature on August 23, 1873 was about 15.2 °C. There was 6 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 94%. Source: KNMI
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
February 18 » Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman authorities.
April 1 » The White Star steamer RMSAtlantic sinks off Nova Scotia, killing 547 in one of the worst marine disasters of the 19th century.
May 23 » The Canadian Parliament establishes the North-West Mounted Police, the forerunner of the Royal Canadian Mounted Police.
July 21 » At Adair, Iowa, Jesse James and the James–Younger Gang pull off the first successful train robbery in the American Old West.
September 15 » Franco-Prussian War: The last Imperial German Army troops leave France upon completion of payment of indemnity.
November 22 » The French steamer SS Ville du Havre sinks in 12 minutes after colliding with the Scottish iron clipper Loch Earn in the Atlantic, with a loss of 226 lives.
Day of marriage May 11, 1907
The temperature on May 11, 1907 was between 10.7 °C and 26.6 °C and averaged 18.4 °C. There was 12.5 hours of sunshine (81%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 6 » Maria Montessori opens her first school and daycare center for working class children in Rome, Italy.
April 15 » Triangle Fraternity is founded at the University of Illinois at Urbana–Champaign.
October 27 » Fifteen people are killed in Hungary when a gunman opens fire on a crowd gathered at a church consecration.
November 16 » Cunard Line's RMSMauretania, sister ship of RMSLusitania, sets sail on her maiden voyage from Liverpool, England, to New York City.
December 6 » A coal mine explosion at Monongah, West Virginia, kills 362 workers.
December 16 » The American Great White Fleet begins its circumnavigation of the world.
Day of death May 15, 1948
The temperature on May 15, 1948 was between 8.1 °C and 22.7 °C and averaged 16.2 °C. There was 14.0 hours of sunshine (89%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 29 » The Pakistan Socialist Party is founded in Karachi.
May 9 » Czechoslovakia's Ninth-of-May Constitution comes into effect.
May 12 » Wilhelmina, Queen regnant of the Kingdom of the Netherlands, cedes the throne.
August 12 » Babrra massacre: About 600 unarmed members of the Khudai Khidmatgar movement are shot dead on the orders of the Chief Minister of the North-West Frontier Province, Abdul Qayyum Khan Kashmiri, on Babrra ground in the Hashtnagar region of Charsadda District, North-West Frontier Province (now Khyber Pakhtunkhwa), Pakistan.
September 13 » Margaret Chase Smith is elected United States senator, and becomes the first woman to serve in both the U.S. House of Representatives and the United States Senate.
December 23 » Seven Japanese military and political leaders convicted of war crimes by the International Military Tribunal for the Far East are executed by Allied occupation authorities at Sugamo Prison in Tokyo, Japan.
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/I55724.php : accessed October 7, 2026), "Ytje Helder (1873-1948)".
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