The temperature on December 13, 1868 was about 5.9 °C. The air pressure was 1 kgf/m2 and came mainly from the south east. The airpressure was 76 cm mercury. The atmospheric humidity was 81%. Source: KNMI
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
March 23 » The University of California is founded in Oakland, California when the Organic Act is signed into law.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
June 23 » Christopher Latham Sholes received a patent for an invention he called the "Type-Writer".
August 13 » The 8.5–9.0 Mw Arica earthquake struck southern Peru with a maximum Mercalli intensity of XI (Extreme), causing 25,000+ deaths and a destructive basin wide tsunami that affected Hawaii and New Zealand.
September 23 » Grito de Lares ("Lares Revolt") occurs in Puerto Rico against Spanish rule.
November 4 » Camagüey, Cuba, revolts against Spain during the Ten Years' War.
Day of marriage May 18, 1895
The temperature on May 18, 1895 was about 7.5 °C. There was 0.2 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 94%. Source: KNMI
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
May 25 » Playwright, poet and novelist Oscar Wilde is convicted of "committing acts of gross indecency with other male persons" and sentenced to serve two years in prison.
June 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of death October 7, 1931
The temperature on October 7, 1931 was between 8.5 °C and 15.7 °C and averaged 12.4 °C. There was 13.1 mm of rain during 5.7 hours. There was 0.9 hours of sunshine (8%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
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/I40391.php : accessed February 11, 2026), "Sjoerd Boonstra (1868-1931)".
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