The temperature on July 18, 1887 was about 18.1 °C. The air pressure was 10 kgf/m2 and came mainly from the northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 55%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
Day of marriage September 17, 1914
The temperature on September 17, 1914 was between 10.9 °C and 16.8 °C and averaged 13.4 °C. There was 3.1 mm of rain. There was 1.7 hours of sunshine (13%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the 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.
August 6 » World War I: First Battle of the Atlantic: Two days after the United Kingdom had declared war on Germany over the German invasion of Belgium, ten German U-boats leave their base in Heligoland to attack Royal Navy warships in the North Sea.
August 24 » World War I: German troops capture Namur.
November 9 » SMSEmden is sunk by HMASSydney in the Battle of Cocos.
November 13 » Zaian War: Berber tribesmen inflict the heaviest defeat of French forces in Morocco at the Battle of El Herri.
December 23 » World War I: Australian and New Zealand troops arrive in Cairo, Egypt.
December 24 » World War I: The "Christmas truce" begins.
Day of death September 16, 1938
The temperature on September 16, 1938 was between 3.5 °C and 17.6 °C and averaged 10.7 °C. There was 7.6 hours of sunshine (60%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
February 4 » Adolf Hitler appoints himself as head of the Armed Forces High Command.
March 18 » Mexico creates Pemex by expropriating all foreign-owned oil reserves and facilities.
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
July 20 » The United States Department of Justice files suit in New York City against the motion picture industry charging violations of the Sherman Antitrust Act in regards to the studio system. The case would eventually result in a break-up of the industry in 1948.
October 5 » In Nazi Germany, Jews' passports are invalidated.
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I418191.php : accessed February 20, 2026), "Wilhelmus Antonius Koman (1887-1938)".
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