The temperature on February 1, 1884 was about 9.1 °C. There was 4 mm of rain. The air pressure was 13 kgf/m2 and came mainly from the southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 85%. 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 4 » The Fabian Society is founded in London, United Kingdom.
May 31 » The arrival at Plymouth of Tāwhiao, King of Maoris, to claim the protection of Queen Victoria.
July 3 » Dow Jones & Company publishes its first stock average.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
October 22 » The International Meridian Conference designates the Royal Observatory, Greenwich as the world's prime meridian.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of marriage May 1, 1913
The temperature on May 1, 1913 was between 7.9 °C and 12.9 °C and averaged 10.1 °C. There was 0.6 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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.
February 17 » The Armory Show opens in New York City, displaying works of artists who are to become some of the most influential painters of the early 20th century.
April 4 » First Balkan War: Greek aviator Emmanouil Argyropoulos becomes the first pilot to die in the Hellenic Air Force when his plane crashes.
June 19 » Natives Land Act, 1913 in South Africa implemented.
July 12 » Serbian forces begin their siege of the Bulgarian city of Vidin; the siege is later called off when the war ends.
August 16 » Tōhoku Imperial University of Japan (modern day Tohoku University) becomes the first university in Japan to admit female students.
December 24 » The Italian Hall disaster in Calumet, Michigan results in the deaths of 73 Christmas party participants (including 59 children) when someone falsely yells "fire".
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/I59462.php : accessed October 8, 2026), "Wiebe de Groot (1884-????)".
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