The temperature on April 21, 1866 was about 12.5 °C. There was 0.5 mm of rain. The air pressure was 1.5 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 77%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
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).
January 12 » The Royal Aeronautical Society is formed in London.
March 27 » President of the United States of America Andrew Johnson vetoes the Civil Rights Act of 1866. His veto is overridden by Congress and the bill passes into law on April 9.
July 25 » The United States Congress passes legislation authorizing the rank of General of the Army. Lieutenant General Ulysses S. Grant becomes the first to be promoted to this rank.
July 30 » Armed Confederate veterans in New Orleans riot against a meeting of Radical Republicans, killing 48 people and injuring another 100.
August 20 » President Andrew Johnson formally declares the American Civil War over.
September 22 » The Battle of Curupayty is Paraguay's only significant victory in the Paraguayan War.
Day of marriage June 1, 1898
The temperature on June 1, 1898 was about 10.8 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 70%. Source: KNMI
January 13 » Émile Zola's J'accuse…! exposes the Dreyfus affair.
February 7 » Dreyfus affair: Émile Zola is brought to trial for libel for publishing J'Accuse…!.
April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
August 23 » The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London.
August 29 » The Goodyear tire company is founded.
October 18 » The United States takes possession of Puerto Rico from Spain.
Day of death April 8, 1914
The temperature on April 8, 1914 was between 4.6 °C and 11.6 °C and averaged 7.9 °C. There was 2.7 mm of rain. There was 10.3 hours of sunshine (77%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
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.
January 1 » The SPT Airboat Line becomes the world's first scheduled airline to use a winged aircraft.
August 21 » World War I: The Battle of Charleroi, a successful German attack across the River Sambre that pre-empted a French offensive in the same area.
August 26 » World War I: During the retreat from Mons, the British II Corps commanded by General Sir Horace Smith-Dorrien fought a vigorous and successful defensive action at Le Cateau.
September 3 » World War I: Start of the Battle of Grand Couronné, a German assault against French positions on high ground near the city of Nancy.
September 26 » The United States Federal Trade Commission is established by the Federal Trade Commission Act.
December 15 » A gas explosion at Mitsubishi Hōjō coal mine, in Kyushu, Japan, kills 687.
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/I163310.php : accessed February 13, 2026), "Harm Datema (1866-1914)".
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