The temperature on April 19, 1883 was about 15.9 °C. The air pressure was 6 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 45%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
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.
March 20 » The Paris Convention for the Protection of Industrial Property is signed.
May 20 » Krakatoa begins to erupt; the volcano explodes three months later, killing more than 36,000 people.
May 24 » The Brooklyn Bridge in New York City is opened to traffic after 14 years of construction.
May 27 » Alexander III is crowned Tsar of Russia.
May 30 » In New York City, a stampede on the recently opened Brooklyn Bridge killed twelve people.
August 25 » France and Viet Nam sign the Treaty of Huế, recognizing a French protectorate over Annam and Tonkin.
Day of marriage May 25, 1912
The temperature on May 25, 1912 was between 5.6 °C and 13.8 °C and averaged 10.1 °C. There was 3.0 hours of sunshine (19%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
January 17 » British polar explorer Captain Robert Falcon Scott reaches the South Pole, one month after Roald Amundsen.
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
December 6 » The Nefertiti Bust is discovered.
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
Day of death January 18, 1952
The temperature on January 18, 1952 was between 0.5 °C and 4.7 °C and averaged 2.9 °C. There was 6.8 mm of rain during 7.7 hours. There was 0.7 hours of sunshine (8%). The heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the northwest. Source: KNMI
April 9 » Hugo Ballivián's government is overthrown by the Bolivian National Revolution, starting a period of agrarian reform, universal suffrage and the nationalization of tin mines
April 15 » First flight of the Boeing B-52 Stratofortress.
May 3 » Lieutenant Colonels Joseph O. Fletcher and William P. Benedict of the United States land a plane at the North Pole.
August 11 » Hussein bin Talal is proclaimed King of Jordan.
November 4 » The United States government establishes the National Security Agency, or NSA.
November 25 » Korean War: After 42 days of fighting, the Battle of Triangle Hill ends with Chinese victory, American and South Korean units abandon their attempt to capture the "Iron Triangle".
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I213328.php : accessed October 11, 2026), "Jan Koolma (1883-1952)".
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