The temperature on June 20, 1866 was about 19.8 °C. The air pressure was 3.5 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 48%. 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).
May 16 » The United States Congress establishes the nickel.
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 28 » At the age of 18, Vinnie Ream becomes the first and youngest female artist to receive a commission from the United States government for a statue (of Abraham Lincoln).
August 17 » The Grand Duchy of Baden announces her withdrawal from the German Confederation and signs a treaty of peace and alliance with Prussia.
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 death August 9, 1954
The temperature on August 9, 1954 was between 9.9 °C and 19.4 °C and averaged 14.8 °C. There was 2.3 mm of rain during 3.9 hours. There was 4.2 hours of sunshine (28%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
March 13 » The Battle of Điện Biên Phủ begins with an artillery barrage by Viet Minh forces under Võ Nguyên Giáp; Viet Minh victory lead to the end of the First Indochina War and French withdrawal from Vietnam.
April 25 » The first practical solar cell is publicly demonstrated by Bell Telephone Laboratories.
June 18 » Carlos Castillo Armas leads an invasion force across the Guatemalan border, setting in motion the 1954 Guatemalan coup d'état.
July 15 » First flight of the Boeing 367-80, prototype for both the Boeing 707 and C-135 series.
September 8 » The Southeast Asia Treaty Organization (SEATO) is established.
September 30 » The U.S. Navy submarine USSNautilus is commissioned as the world's first nuclear-powered vessel.
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/I188183.php : accessed February 14, 2026), "Hendrik Ketellapper (1866-1954)".
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