The temperature on July 18, 1904 was between 9.1 °C and 21.1 °C and averaged 16.2 °C. There was 14.2 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 8 » Aceh War: Dutch Colonial Army's Marechaussee regiment led by General G.C.E. van Daalen launch military campaign to capture Gayo Highland, Alas Highland, and Batak Highland in Dutch East Indies' Northern Sumatra region, which ends with genocide to Acehnese and Bataks people.
May 21 » The Fédération Internationale de Football Association (FIFA) is founded in Paris.
August 10 » Russo-Japanese War: The Battle of the Yellow Sea between the Russian and Japanese battleship fleets takes place.
October 20 » Chile and Bolivia sign the Treaty of Peace and Friendship, delimiting the border between the two countries.
October 27 » The first underground New York City Subway line opens, later designated as the IRT Broadway–Seventh Avenue Line.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
Day of marriage April 5, 1930
The temperature on April 5, 1930 was between 2.9 °C and 8.6 °C and averaged 5.9 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 6 » The first diesel-powered automobile trip is completed, from Indianapolis, Indiana, to New York, New York.
January 30 » The Politburo of the Soviet Union orders the extermination of the Kulaks.
April 2 » After the mysterious death of Empress Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
April 28 » The Independence Producers hosted the first night game in the history of Organized Baseball in Independence, Kansas.
December 2 » Great Depression: In a State of the Union message, U.S. President Herbert Hoover proposes a $150 million (equivalent to $2,296,000,000 in 2019) public works program to help generate jobs and stimulate the economy.
December 29 » Sir Muhammad Iqbal's presidential address in Allahabad introduces the two-nation theory and outlines a vision for the creation of Pakistan.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I96833.php : accessed February 18, 2026), "Jan de Groot (1904-)".
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