The temperature on August 30, 1889 was about 18.3 °C. The air pressure was 4 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 81%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
Day of marriage April 30, 1918
The temperature on April 30, 1918 was between 5.6 °C and 11.7 °C and averaged 8.5 °C. There was 3.3 hours of sunshine (22%). The average windspeed was 4 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.
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.
April 23 » World War I: The British Royal Navy makes a raid in an attempt to neutralise the Belgian port of Bruges-Zeebrugge.
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 1 » Sayid Abdullah becomes the last Khan of Khiva.
November 1 » Western Ukraine separates from Austria-Hungary.
November 26 » The Montenegran Podgorica Assembly votes for a "union of the people", declaring assimilation into the Kingdom of Serbia.
When copying data from this family tree, please include a reference to the origin: Arie Verloop, "Family tree Verloop", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-verloop/I8277.php : accessed October 7, 2026), "Maartje de KORT (1889-????)".
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