The temperature on May 27, 1861 was about 13.5 °C. The air pressure was 1 kgf/m2 and came mainly from the northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 74%. Source: KNMI
From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
February 23 » President-elect Abraham Lincoln arrives secretly in Washington, D.C., after the thwarting of an alleged assassination plot in Baltimore, Maryland.
March 30 » Discovery of the chemical elements: Sir William Crookes announces his discovery of thallium.
August 19 » First ascent of Weisshorn, fifth highest summit in the Alps.
September 17 » Argentine Civil Wars: The State of Buenos Aires defeats the Argentine Confederation at the Battle of Pavón.
October 21 » American Civil War: Union forces under Colonel Edward Baker are defeated by Confederate troops in the second major battle of the war.
November 7 » American Civil War: Battle of Belmont: In Belmont, Missouri, Union forces led by General Ulysses S. Grant overrun a Confederate camp but are forced to retreat when Confederate reinforcements arrive.
Day of marriage May 14, 1881
The temperature on May 14, 1881 was about 15.0 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 60%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
April 11 » Spelman College is founded in Atlanta, Georgia as the Atlanta Baptist Female Seminary, an institute of higher education for African-American women.
June 14 » The White Rajahs territories become the British protectorate of Sarawak.
July 1 » General Order 70, the culmination of the Cardwell and Childers reforms of the British Army, comes into effect.
July 23 » The Boundary Treaty of 1881 between Chile and Argentina is signed in Buenos Aires.
September 20 » U.S. President Chester A. Arthur is sworn in, the morning after becoming President upon James A. Garfield's death.
November 3 » The Mapuche uprising of 1881 begins in Chile.
Day of death May 4, 1942
The temperature on May 4, 1942 was between -0.5 °C and 9.8 °C and averaged 5.7 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 27 » World War II: During the Battle of the Java Sea, an Allied strike force is defeated by a Japanese task force in the Java Sea in the Dutch East Indies.
March 28 » World War II: A British combined force permanently disables the Louis Joubert Lock in Saint-Nazaire in order to keep the German battleship Tirpitz away from the mid-ocean convoy lanes.
April 8 » World War II: Siege of Leningrad: Soviet forces open a much-needed railway link to Leningrad.
June 10 » World War II: The Lidice massacre is perpetrated as a reprisal for the assassination of Obergruppenführer Reinhard Heydrich.
July 28 » World War II: Soviet leader Joseph Stalin issues Order No. 227. In response to alarming German advances, all those who retreat or otherwise leave their positions without orders to do so are to be tried in a military court, with punishment ranging from duty in a shtrafbat battalion, imprisonment in a Gulag, or execution.
December 24 » World War II: French monarchist, Fernand Bonnier de La Chapelle, assassinates Vichy French Admiral François Darlan in Algiers, Algeria.
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/I12561.php : accessed October 5, 2026), "Harmke Melles "Harriet" Koopmans (1861-1942)".
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