The temperature on April 30, 1904 was between 9.5 °C and 13.3 °C and averaged 11.1 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 17 » Madama Butterfly receives its première at La Scala in Milan.
May 4 » The United States begins construction of the Panama Canal.
June 16 » Eugen Schauman assassinates Nikolay Bobrikov, Governor-General of Finland.
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.
December 3 » The Jovian moon Himalia is discovered by Charles Dillon Perrine at California's Lick Observatory.
Day of death February 7, 1947
The temperature on February 7, 1947 was between -12.2 °C and -4.5 °C and averaged -8.5 °C. There was 7.3 hours of sunshine (77%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
June 23 » The United States Senate follows the United States House of Representatives in overriding U.S. President Harry S. Truman's veto of the Taft–Hartley Act.
July 10 » Muhammad Ali Jinnah is recommended as the first Governor-General of Pakistan by the British Prime Minister, Clement Attlee.
October 26 » Kashmir conflict: The Maharaja of Kashmir and Jammu signs the Instrument of Accession with India.
November 2 » In California, designer Howard Hughes performs the maiden (and only) flight of the Hughes H-4 Hercules (also known as the "Spruce Goose"), the largest fixed-wing aircraft ever built.
November 30 » Civil War in Mandatory Palestine begins, leading up to the creation of the state of Israel.
December 2 » Jerusalem Riots of 1947: Riots break out in Jerusalem in response to the United Nations Partition Plan for Palestine.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I4965.php : accessed October 10, 2026), "Helena Maria de Bock (1904-1947)".
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