The temperature on July 11, 1918 was between 9.9 °C and 19.5 °C and averaged 14.7 °C. There was 3.9 mm of rain. There was 10.4 hours of sunshine (63%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. 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.
January 17 » Finnish Civil War: The first serious battles take place between the Red Guards and the White Guard.
March 12 » Moscow becomes the capital of Russia again after Saint Petersburg held this status for most of the period since 1713.
May 14 » Cape Town Mayor, Sir Harry Hands, inaugurates the Two-minute silence.
August 8 » World War I: The Battle of Amiens begins a string of almost continuous Allied victories with a push through the German front lines (Hundred Days Offensive).
October 30 » World War I: The Ottoman Empire signs the Armistice of Mudros with the Allies.
November 4 » World War I: The Armistice of Villa Giusti between Italy and Austria-Hungary is implemented.
Day of death May 13, 1940
The temperature on May 13, 1940 was between 2.2 °C and 10.2 °C and averaged 7.3 °C. There was 0.3 mm of rain during 0.7 hours. There was 1.7 hours of sunshine (11%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 20 » The Holocaust: The first prisoners arrive at a new concentration camp at Auschwitz.
May 24 » Igor Sikorsky performs the first successful single-rotor helicopter flight.
July 23 » The United States' Under Secretary of State Sumner Welles issues a declaration on the U.S. non-recognition policy of the Soviet annexation and incorporation of three Baltic states: Estonia, Latvia and Lithuania.
August 15 » An Italian submarine torpedoes and sinks the Greek cruiserElli at Tinos harbor during peacetime, marking the most serious Italian provocation prior to the outbreak of the Greco-Italian War in October.
September 9 » Treznea Massacre in Transylvania.
October 28 » Second World War: Greece rejects Italy's ultimatum. Italy invades Greece through Albania a few hours later.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I3415.php : accessed October 11, 2026), "MARTINUS ROM COLTHOFF (1918-1940)".
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