The temperature on May 25, 1880 was about 13.3 °C. The air pressure was 1 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 85%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
February 13 » Thomas Edison observes Thermionic emission.
May 11 » Seven people are killed in the Mussel Slough Tragedy, a gun battle in California.
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
November 11 » Australian bushranger Ned Kelly is hanged at Melbourne Gaol.
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of marriage May 17, 1906
The temperature on May 17, 1906 was between 6.4 °C and 15.2 °C and averaged 10.6 °C. There was 1.0 mm of rain. There was 5.7 hours of sunshine (36%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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.
March 31 » The Intercollegiate Athletic Association of the United States (later the National Collegiate Athletic Association) is established to set rules for college sports in the United States.
April 8 » Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
May 6 » The Russian Constitution of 1906 is adopted (on April 23 by the Julian calendar).
September 1 » The International Federation of Intellectual Property Attorneys is established.
November 9 » Theodore Roosevelt is the first sitting President of the United States to make an official trip outside the country. He did so to inspect progress on the Panama Canal.
November 24 » A 13–6 victory by the Massillon Tigers over their rivals, the Canton Bulldogs, for the "Ohio League" Championship, leads to accusations that the championship series was fixed and results in the first major scandal in professional American football.
Day of death January 15, 1953
The average temperature on January 15, 1953 was -0.7 °C. There was 0.7 mm of rain during 2.6 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 13 » An article appears in Pravda accusing some of the most prestigious and prominent doctors, mostly Jews, in the Soviet Union of taking part in a vast plot to poison members of the top Soviet political and military leadership.
January 31 » A North Sea flood causes over 1,800 deaths in the Netherlands and over 300 in the United Kingdom.
February 28 » James Watson and Francis Crick announce to friends that they have determined the chemical structure of DNA; the formal announcement takes place on April 25 following publication in April's Nature (pub. April 2).
March 1 » Soviet Premier Joseph Stalin suffers a stroke and collapses; he dies four days later.
July 17 » The largest number of United States midshipman casualties in a single event results from an aircraft crash in Florida, killing 44.
November 23 » Pilot Felix Moncla and Lieutenant Robert Wilson disappear while in pursuit of a mysterious craft over Lake Superior.
When copying data from this family tree, please include a reference to the origin: Harry Koning, "Koning Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/koning-family-tree/I500004.php : accessed August 6, 2025), "Harm Koning (1880-1953)".
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