The temperature on July 15, 1861 was about 23.6 °C. There was 0.1 mm of rain. The air pressure was 2.5 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 62%. 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).
January 3 » American Civil War: Delaware votes not to secede from the United States.
February 4 » American Civil War: In Montgomery, Alabama, delegates from six break-away U.S. states meet and form the Confederate States of America.
April 27 » American President Abraham Lincoln suspends the writ of habeas corpus.
May 13 » Pakistan's (then a part of British India) first railway line opens, from Karachi to Kotri.
November 7 » The first Melbourne Cup horse race is held in Melbourne, Australia.
November 28 » American Civil War: The Confederate States of America accept a rival state government's pronouncement that declares Missouri to be the 12th state of the Confederacy.
Day of death April 6, 1939
The temperature on April 6, 1939 was between 3.3 °C and 8.1 °C and averaged 6.5 °C. There was 5.9 mm of rain during 3.2 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
March 16 » From Prague Castle, Hitler proclaims Bohemia and Moravia a German protectorate.
March 17 » Second Sino-Japanese War: Battle of Nanchang between the Kuomintang and Japan begins.
March 22 » Germany takes Memel from Lithuania.
April 9 » African-American singer Marian Anderson gives a concert at the Lincoln Memorial after being denied the use of Constitution Hall by the Daughters of the American Revolution.
June 24 » Siam is renamed Thailand by Plaek Phibunsongkhram, the country's third prime minister.
October 14 » World War II: The German submarineU-47 sinks the British battleship HMSRoyal Oak within her harbour at Scapa Flow, Scotland.
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/I124876.php : accessed October 15, 2026), "Douwe Koopmans (1861-1939)".
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