The temperature on August 17, 1868 was about 33.0 °C. The air pressure was 3 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 43%. 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).
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
April 11 » Former shōgun Tokugawa Yoshinobu surrenders Edo Castle to Imperial forces, marking the end of the Tokugawa shogunate.
May 29 » Mihailo Obrenović III, Prince of Serbia is assassinated.
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).
June 23 » Christopher Latham Sholes received a patent for an invention he called the "Type-Writer".
August 18 » French astronomer Pierre Janssen discovers helium.
Day of marriage May 23, 1896
The temperature on May 23, 1896 was about 11.9 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 87%. Source: KNMI
January 4 » Utah is admitted as the 45th U.S. state.
March 1 » Henri Becquerel discovers radioactive decay.
May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
September 22 » Queen Victoria surpasses her grandfather King George III as the longest reigning monarch in British history.
Day of death January 8, 1938
The temperature on January 8, 1938 was between 3.2 °C and 5.4 °C and averaged 3.9 °C. There was 1.0 hours of sunshine (13%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 28 » The World Land Speed Record on a public road is broken by Rudolf Caracciola in the Mercedes-Benz W195 at a speed of 432.7 kilometres per hour (268.9mph).
February 4 » Adolf Hitler appoints himself as head of the Armed Forces High Command.
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
July 10 » Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
November 14 » The Lions Gate Bridge, connecting Vancouver to the North Shore region, opens to traffic.
December 13 » The Holocaust: The Neuengamme concentration camp opens in the Bergedorf district of Hamburg, Germany.
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/I201589.php : accessed December 28, 2025), "Roelf Groeneveld (1868-1938)".
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