The temperature on September 27, 1863 was about 15.2 °C. The air pressure was 4.5 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 57%. 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.
February 24 » Arizona is organized as a United States territory.
May 17 » Rosalía de Castro publishes Cantares Gallegos, the first book in the Galician language.
July 1 » Keti Koti (Emancipation Day) in Suriname, marking the abolition of slavery by the Netherlands.
July 18 » American Civil War: Second Battle of Fort Wagner: One of the first formal African American military units, the 54th Massachusetts Volunteer Infantry, supported by several white regiments, attempts an unsuccessful assault on Confederate-held Battery Wagner.
July 26 » American Civil War: Morgan's Raid ends; At Salineville, Ohio, Confederate cavalry leader John Hunt Morgan and 360 of his volunteers are captured by Union forces.
September 19 » American Civil War: The first day of the Battle of Chickamauga, in northwestern Georgia, the bloodiest two-day battle of the conflict, and the only significant Confederate victory in the war's Western Theater.
Day of marriage March 18, 1899
The temperature on March 18, 1899 was about 6.9 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 52%. Source: KNMI
February 22 » Filipino forces led by General Antonio Luna launch counterattacks for the first time against the American forces during the Philippine–American War. The Filipinos fail to regain Manila from the Americans.
March 4 » Cyclone Mahina sweeps in north of Cooktown, Queensland, with a 12 metres (39ft) wave that reaches up to 5 kilometres (3.1mi) inland, killing over 300.
May 8 » The Irish Literary Theatre in Dublin produced its first play.
November 28 » The Second Boer War: a British column is engaged by Boer forces at the Battle of Modder River; although the Boers withdraw, the British suffer heavy casualties.
December 11 » Second Boer War: In the Battle of Magersfontein the Boers commanded by general Piet Cronjé inflict a defeat on the forces of the British Empire commanded by Lord Methuen trying to relieve the Siege of Kimberley.
Day of death July 4, 1911
The temperature on July 4, 1911 was between 3.0 °C and 20.0 °C and averaged 13.3 °C. There was 14.5 hours of sunshine (87%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
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/I169776.php : accessed February 16, 2026), "Klaas Sytsma (1863-1911)".
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