The temperature on April 17, 1910 was between 4.4 °C and 10.6 °C and averaged 8.0 °C. There was 0.4 hours of sunshine (3%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
April 12 » SMSZrínyi, one of the last pre-dreadnought battleships built by the Austro-Hungarian Navy, is launched.
July 24 » The Ottoman Empire captures the city of Shkodër, putting down the Albanian Revolt of 1910.
August 22 » Korea is annexed by Japan with the signing of the Japan–Korea Treaty of 1910, beginning a period of Japanese rule of Korea that lasted until the end of World War II.
October 5 » In a revolution in Portugal the monarchy is overthrown and a republic is declared.
October 6 » Eleftherios Venizelos is elected prime minister of Greece for the first of seven times.
Day of death August 2, 1980
The temperature on August 2, 1980 was between 13.2 °C and 27.7 °C and averaged 21.7 °C. There was 11.3 hours of sunshine (73%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 25 » The government of Suriname is overthrown by a military coup led by Dési Bouterse.
March 14 » LOT Flight 7 crashes during final approach near Warsaw, Poland, killing 87 people, including a 14-man American boxing team.
April 24 » Eight U.S. servicemen die in Operation Eagle Claw as they attempt to end the Iran hostage crisis.
May 18 » Mount St. Helens erupts in Washington, United States, killing 57 people and causing $3billion in damage.
September 5 » The Gotthard Road Tunnel opens in Switzerland as the world's longest highway tunnel at 10.14 miles (16.32km) stretching from Göschenen to Airolo.
December 24 » Witnesses report the first of several sightings of unexplained lights near RAF Woodbridge, in Rendlesham Forest, Suffolk, England, United Kingdom, an incident called "Britain's Roswell".
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/I17592.php : accessed October 2, 2026), "Leo August Alice Raymond de Groep (1910-1980)".
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