The temperature on February 7, 1864 was about -1.1 °C. There was 0.1 mm of rain. The air pressure was 0.5 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 82%. 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.
May 26 » Montana is organized as a United States territory.
June 3 » American Civil War: Battle of Cold Harbor: Union forces attack Confederate troops in Hanover County, Virginia.
July 11 » American Civil War: Battle of Fort Stevens; Confederate forces attempt to invade Washington, D.C.
October 7 » American Civil War: A US Navy ship captures a Confederate raider in a Brazilian seaport.
November 4 » American Civil War: Confederate troops bombard a Union supply base and destroy millions of dollars in material at the Battle of Johnsonville.
November 15 » American Civil War: Union General William Tecumseh Sherman begins Sherman's March to the Sea.
Day of marriage January 21, 1898
The temperature on January 21, 1898 was about 8.3 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 100%. Source: KNMI
January 13 » Émile Zola's J'accuse…! exposes the Dreyfus affair.
April 20 » U.S. President William McKinley signed a joint resolution to Congress for declaration of war against Spain, beginning the Spanish–American War.
April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
May 8 » The first games of the Italian football league system are played.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
November 5 » Negrese nationalists revolt against Spanish rule and establish the short-lived Republic of Negros.
Day of death June 29, 1946
The temperature on June 29, 1946 was between 8.3 °C and 20.6 °C and averaged 14.9 °C. There was 6.6 hours of sunshine (40%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
January 31 » The Democratic Republic of Vietnam introduces the đồng to replace the French Indochinese piastre at par.
February 22 » The "Long Telegram", proposing how the United States should deal with the Soviet Union, arrives from the US embassy in Moscow.
April 23 » Manuel Roxas is elected the last President of the Commonwealth of the Philippines.
May 21 » Physicist Louis Slotin is fatally irradiated in a criticality incident during an experiment with the demon core at Los Alamos National Laboratory.
June 7 » The United Kingdom's BBC returns to broadcasting its television service, which has been off air for seven years because of the Second World War.
July 22 » King David Hotel bombing: A Zionist underground organisation, the Irgun, bombs the King David Hotel in Jerusalem, site of the civil administration and military headquarters for Mandatory Palestine, resulting in 91 deaths.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I248903.php : accessed February 18, 2026), "Hermannus Gerhardus Henderikus Mars (1864-1946)".
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