May 8 » The first games of the Italian football league system are played.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
August 13 » Carl Gustav Witt discovers 433 Eros, the first near-Earth asteroid to be found.
August 25 » Seven hundred Greek civilians, 17 British guards and the British Consul of Crete are killed by a Turkish mob in Heraklion, Greece.
October 18 » The United States takes possession of Puerto Rico from Spain.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of death June 13, 1915
The temperature on June 13, 1915 was between 9.5 °C and 24.4 °C and averaged 15.6 °C. There was 11.7 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
January 19 » Georges Claude patents the neon discharge tube for use in advertising.
June 5 » Denmark amends its constitution to allow women's suffrage.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
October 14 » World War I: Bulgaria joins the Central Powers.
When copying data from this family tree, please include a reference to the origin: J.A.de Keijzer, "Family tree Tonnaer en Gerardu", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_tonnaer_gerardu/I2803.php : accessed June 10, 2024), "Maria Agnes Jaspers (1898-1915)".
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