The temperature on June 23, 1887 was about 12.9 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 84%. 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.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
November 13 » Bloody Sunday clashes in central London.
Day of marriage June 10, 1905
The temperature on June 10, 1905 was between 10.8 °C and 18.6 °C and averaged 14.5 °C. There was 1.6 hours of sunshine (10%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 26 » The world's largest diamond ever, the Cullinan weighing 3,106.75 carats (0.621350kg), is found at the Premier Mine near Pretoria in South Africa.
May 5 » The trial in the Stratton Brothers case begins in London, England; it marks the first time that fingerprint evidence is used to gain a conviction for murder.
June 30 » Albert Einstein sends the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity, for publication in Annalen der Physik.
September 8 » The 7.2 Mw Calabria earthquake shakes southern Italy with a maximum Mercalli intensity of XI (Extreme), killing between 557 and 2,500 people.
September 23 » Norway and Sweden sign the "Karlstad treaty", peacefully dissolving the Union between the two countries.
September 26 » Albert Einstein publishes the third of his Annus Mirabilis papers, introducing the special theory of relativity.
Day of death September 20, 1969
The temperature on September 20, 1969 was between 2.2 °C and 17.9 °C and averaged 10.6 °C. There was 9.4 hours of sunshine (76%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
April 17 » Communist Party of Czechoslovakia chairman Alexander Dubček is deposed.
April 22 » British yachtsman Sir Robin Knox-Johnston wins the Sunday Times Golden Globe Race and completes the first solo non-stop circumnavigation of the world.
May 17 » Venera program: Soviet Venera 6 begins its descent into the atmosphere of Venus, sending back atmospheric data before being crushed by pressure.
May 26 » Apollo program: Apollo 10 returns to Earth after a successful eight-day test of all the components needed for the forthcoming first manned moon landing.
June 28 » Stonewall riots begin in New York City, marking the start of the Gay Rights Movement.
December 6 » Altamont Free Concert: At a free concert performed by the Rolling Stones, eighteen-year old Meredith Hunter is stabbed to death by Hells Angels security guards.
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/I18769.php : accessed October 9, 2026), "Jacoba Wilmina Ridder (1887-1969)".
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