The temperature on January 13, 1912 was between 1.5 °C and 4.5 °C and averaged 3.1 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
July 8 » Henrique Mitchell de Paiva Couceiro leads an unsuccessful royalist attack against the First Portuguese Republic in Chaves.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
Day of death November 17, 1918
The temperature on November 17, 1918 was between -5.1 °C and 2.1 °C and averaged -1.6 °C. There was 5.1 hours of sunshine (58%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 31 » Massacre of ethnic Azerbaijanis is committed by allied armed groups of Armenian Revolutionary Federation and Bolsheviks. Nearly 12,000 Azerbaijani Muslims are killed.
April 1 » The Royal Air Force is created by the merger of the Royal Flying Corps and the Royal Naval Air Service.
May 9 » World War I: Germany repels Britain's second attempt to blockade the port of Ostend, Belgium.
June 24 » First airmail service in Canada from Montreal to Toronto.
August 17 » Bolshevik revolutionary leader Moisei Uritsky is assassinated.
November 13 » World War I: Allied troops occupy Constantinople, the capital of the Ottoman Empire.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I283458.php : accessed January 8, 2026), "Gerardus Johannes Roovers (1912-1918)".
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