The temperature on April 21, 1904 was between 6.0 °C and 16.9 °C and averaged 11.8 °C. There was 7.2 hours of sunshine (51%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 17 » Madama Butterfly receives its première at La Scala in Milan.
April 8 » Longacre Square in Midtown Manhattan is renamed Times Square after The New York Times.
May 4 » The United States begins construction of the Panama Canal.
July 21 » Louis Rigolly, a Frenchman, becomes the first man to break the 100mph (161km/h) barrier on land. He drove a 15-liter Gobron-Brillié in Ostend, Belgium.
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).
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/I199571.php : accessed December 27, 2025), "Hendrik van Velzen (1904-1904)".
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