The temperature on March 23, 1904 was between 4.3 °C and 6.8 °C and averaged 5.1 °C. The average windspeed was 5 Bft (very strong wind) and was prevailing from the north. Source: KNMI
January 7 » The distress signal "CQD" is established only to be replaced two years later by "SOS".
February 8 » Battle of Port Arthur: A surprise torpedo attack by the Japanese at Port Arthur, China starts the Russo-Japanese War.
February 9 » Russo-Japanese War: Battle of Port Arthur concludes.
May 4 » The United States begins construction of the Panama Canal.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
December 7 » Comparative fuel trials begin between warships HMSSpiteful and HMSPeterel: Spiteful was the first warship powered solely by fuel oil, and the trials led to the obsolescence of coal in ships of the Royal Navy.
Day of marriage September 10, 1935
The temperature on September 10, 1935 was between 3.2 °C and 18.5 °C and averaged 11.5 °C. There was 11.0 hours of sunshine (84%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
February 12 » USSMacon, one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.
April 8 » The Works Progress Administration is formed when the Emergency Relief Appropriation Act of 1935 becomes law.
May 6 » New Deal: Under the authority of the newly-enacted Federal Emergency Relief Administration, President Franklin D. Roosevelt issues Executive Order 7034 to create the Works Progress Administration.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
September 17 » The Niagara Gorge Railroad ceases operations after a rockslide.
September 30 » The Hoover Dam, astride the border between the U.S. states of Arizona and Nevada, is dedicated.
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/I138937.php : accessed October 18, 2026), "Jan Roelof Kok (1904-)".
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