The temperature on December 29, 1904 was between 1.2 °C and 10.0 °C and averaged 6.9 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 8 » Battle of Port Arthur: A surprise torpedo attack by the Japanese at Port Arthur, China starts the Russo-Japanese War.
February 28 » S.L. Benfica is founded in Portugal.
April 5 » The first international rugby league match is played between England and an Other Nationalities team (Welsh and Scottish players) in Central Park, Wigan, England.
April 8 » The French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.
October 20 » Chile and Bolivia sign the Treaty of Peace and Friendship, delimiting the border between the two countries.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
Day of marriage January 15, 1941
The temperature on January 15, 1941 was between -7.5 °C and -0.1 °C and averaged -3.2 °C. There was 1.2 mm of rain during 1.7 hours. There was 2.0 hours of sunshine (24%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
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.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 12 » Konrad Zuse presents the Z3, the world's first working programmable, fully automatic computer, in Berlin.
July 5 » World War II: Operation Barbarossa: German troops reach the Dnieper river.
September 8 » World War II: German forces begin the Siege of Leningrad.
November 12 » World War II: The Soviet cruiserChervona Ukraina is destroyed during the Battle of Sevastopol.
December 12 » World War II: Fifty-four Japanese A6M Zero fighters raid Batangas Field, Philippines. Jesús Villamor and four Filipino fighter pilots fend them off; César Basa is killed.
December 24 » World War II: Benghazi is conquered by the British Eighth Army.
When copying data from this family tree, please include a reference to the origin: Wim de Vries, "Family tree Kaempff", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaempff/I1391.php : accessed February 26, 2026), "Henriette Amalia de Bock (1904-)".
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