The temperature on July 11, 1861 was about 21.7 °C. The air pressure was 1.5 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 53%. 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 10 » Jefferson Davis is notified by telegraph that he has been chosen as provisional President of the Confederate States of America.
March 19 » The First Taranaki War ends in New Zealand.
March 20 » An earthquake destroys Mendoza, Argentina.
June 1 » American Civil War: The Battle of Fairfax Court House is fought.
August 29 » American Civil War: The Battle of Hatteras Inlet Batteries gives Federal forces control of Pamlico Sound.
September 17 » Argentine Civil Wars: The State of Buenos Aires defeats the Argentine Confederation at the Battle of Pavón.
Day of marriage September 26, 1884
The temperature on September 26, 1884 was about 13.5 °C. The air pressure was 1 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 84%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 1 » The first volume (A to Ant) of the Oxford English Dictionary is published.
March 27 » A mob in Cincinnati, Ohio, attacks members of a jury which had returned a verdict of manslaughter in what was seen as a clear case of murder; over the next few days the mob would riot and eventually destroy the courthouse.
May 31 » The arrival at Plymouth of Tāwhiao, King of Maoris, to claim the protection of Queen Victoria.
August 5 » The cornerstone for the Statue of Liberty is laid on Bedloe's Island (now Liberty Island) in New York Harbor.
November 1 » The Gaelic Athletic Association is set up in Hayes's Hotel in Thurles, County Tipperary.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of death April 6, 1943
The temperature on April 6, 1943 was between 0.6 °C and 11.7 °C and averaged 6.4 °C. There was 1.3 mm of rain during 1.2 hours. There was 5.2 hours of sunshine (39%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west-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 23 » World War II: Troops of the British Eighth Army capture Tripoli in Libya from the German–Italian Panzer Army.
August 17 » World War II: First Québec Conference of Winston Churchill, Franklin D. Roosevelt, and William Lyon Mackenzie King begins.
September 6 » Pennsylvania Railroad's premier train derails at Frankford Junction in Philadelphia, killing 79 people and injuring 117 others.
October 21 » World War II: The Provisional Government of Free India is formally established in Japanese-occupied Singapore.
October 22 » World War II: In the Second firestorm raid on Germany, the RAF conducts an air raid on the town of Kassel, killing 10,000 and rendering 150,000 homeless.
December 4 » World War II: U.S. President Franklin D. Roosevelt closes down the Works Progress Administration, because of the high levels of wartime employment in the United States.
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/I6167.php : accessed January 6, 2026), "Jan Koopman (1861-1943)".
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