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 11 » American Civil War: The United States House of Representatives unanimously passes a resolution guaranteeing noninterference with slavery in any state.
February 23 » President-elect Abraham Lincoln arrives secretly in Washington, D.C., after the thwarting of an alleged assassination plot in Baltimore, Maryland.
March 11 » American Civil War: The Constitution of the Confederate States of America is adopted.
May 13 » Pakistan's (then a part of British India) first railway line opens, from Karachi to Kotri.
October 24 » The first transcontinental telegraph line across the United States is completed.
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.
February 27 » First Boer War: The Battle of Majuba Hill takes place.
March 13 » Alexander II of Russia is assassinated.
June 13 » The USS Jeannette is crushed in an Arctic Ocean ice pack.
June 28 » The Austro–Serbian Alliance of 1881 is secretly signed.
July 1 » The world's first international telephone call is made between St. Stephen, New Brunswick, Canada, and Calais, Maine, United States.
October 13 » First known conversation in modern Hebrew by Eliezer Ben-Yehuda and friends.
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.
January 2 » The Federal Bureau of Investigation (FBI) obtains the conviction of 33 members of a German spy ring headed by Fritz Joubert Duquesne in the largest espionage case in United States history—the Duquesne Spy Ring.
March 29 » The Bombing of Lübeck in World War II is the first major success for the RAF Bomber Command against Germany and a German city.
April 8 » World War II: Siege of Leningrad: Soviet forces open a much-needed railway link to Leningrad.
May 9 » Holocaust: The SS executes 588 Jewish residents of the Podolian town of Zinkiv (Khmelnytska oblast, Ukraine). The Zoludek Ghetto (in Belarus) is destroyed and all its inhabitants executed or deported.
October 9 » Australia's Statute of Westminster Adoption Act 1942 receives royal assent.
October 11 » World War II: Off Guadalcanal, United States Navy ships intercept and defeat a Japanese force.
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 6, 2026), "Harmke Melles "Harriet" Koopmans (1861-1942)".
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