The temperature on April 18, 1875 was about 16.0 °C. The air pressure was 1 kgf/m2 and came mainly from the north. The airpressure was 76 cm mercury. The atmospheric humidity was 43%. Source: KNMI
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
March 3 » The first ever organized indoor game of ice hockey is played in Montreal, Quebec, Canada as recorded in the Montreal Gazette.
April 10 » India: Arya Samaj is founded in Mumbai by Swami Dayananda Saraswati to propagate his goal of social reform.
May 20 » Signing of the Metre Convention by 17 nations leading to the establishment of the International System of Units.
June 19 » The Herzegovinian rebellion against the Ottoman Empire begins.
August 25 » Captain Matthew Webb becomes the first person to swim across the English Channel, traveling from Dover, England, to Calais, France, in 21 hours and 45 minutes.
October 16 » Brigham Young University is founded in Provo, Utah.
Day of marriage May 17, 1900
The temperature on May 17, 1900 was about 13.0 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 62%. Source: KNMI
April 15 » Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines.
April 30 » Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.
May 17 » The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
June 21 » Boxer Rebellion. China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
December 18 » The Upper Ferntree Gully to Gembrook, Victoria Narrow-gauge (2ft 6 in or 762mm) Railway (now the Puffing Billy Railway) in Victoria, Australia is opened for traffic.
Day of death May 11, 1936
The temperature on May 11, 1936 was between 9.6 °C and 15.8 °C and averaged 12.3 °C. There was 0.2 mm of rain during 0.6 hours. There was 2.3 hours of sunshine (15%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
March 5 » First flight of K5054, the first prototype Supermarine Spitfire advanced monoplane fighter aircraft in the United Kingdom.
June 15 » First flight of the Vickers Wellington bomber.
July 26 » Spanish Civil War: Germany and Italy decide to intervene in the war in support for Francisco Franco and the Nationalist faction.
August 30 » The RMS Queen Mary wins the Blue Riband by setting the fastest transatlantic crossing.
October 1 » Spanish Civil War: Francisco Franco is named head of the Nationalist government of Spain.
December 13 » An annular solar eclipse occurred and was visible from Australia, New Zealand on December 14th (Monday), and Oeno Island in Pitcairn Islands on December 13th (Sunday).
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/I167198.php : accessed October 20, 2026), "Clara van der Werff (1875-1936)".
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