The temperature on July 26, 1868 was about 29.9 °C. The air pressure was 9 kgf/m2 and came mainly from the south east. The airpressure was 76 cm mercury. The atmospheric humidity was 32%. 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).
February 24 » Andrew Johnson becomes the first President of the United States to be impeached by the United States House of Representatives. He is later acquitted in the Senate.
May 16 » The United States Senate fails to convict President Andrew Johnson by one vote.
May 30 » Decoration Day (the predecessor of the modern "Memorial Day") is observed in the United States for the first time after a proclamation by John A. Logan, head of the Grand Army of the Republic (a veterans group).
September 19 » La Gloriosa begins in Spain.
November 2 » Time zone: New Zealand officially adopts a standard time to be observed nationally.
December 9 » The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
Day of marriage July 24, 1897
The temperature on July 24, 1897 was about 15.4 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 92%. Source: KNMI
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of death April 23, 1943
The temperature on April 23, 1943 was between 6.8 °C and 22.2 °C and averaged 14.9 °C. There was 1.6 mm of rain during 0.8 hours. There was 7.2 hours of sunshine (50%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 16 » Albert Hofmann accidentally discovers the hallucinogenic effects of the research drug LSD. He intentionally takes the drug three days later on April 19.
June 20 » World War II: The Royal Air Force launches Operation Bellicose, the first shuttle bombing raid of the war. Lancaster bombers damage the V-2 rocket production facilities at the Zeppelin Works while en route to an air base in Algeria.
August 29 » World War II: German-occupied Denmark scuttles most of its navy; Germany dissolves the Danish government.
September 5 » World War II: The 503rd Parachute Infantry Regiment lands and occupies Lae Nadzab Airport, near Lae in the Salamaua–Lae campaign.
October 14 » World War II: Prisoners at the Sobibór extermination camp in Poland revolt against the Germans.
December 15 » World War II: The Battle of Arawe begins during the New Britain campaign.
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/I33850.php : accessed October 19, 2026), "Siemon Zijlstra (1868-1943)".
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