The temperature on December 9, 1864 was about 2.8 °C. The air pressure was 0.5 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 98%. 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.
February 17 » American Civil War: The H. L. Hunley becomes the first submarine to engage and sink a warship, the USSHousatonic.
April 17 » American Civil War: The Battle of Plymouth begins: Confederate forces attack Plymouth, North Carolina.
May 21 » Russia declares an end to the Russo-Circassian War and many Circassians are forced into exile. The day is designated the Circassian Day of Mourning.
July 28 » American Civil War: Battle of Ezra Church: Confederate troops make a third unsuccessful attempt to drive Union forces from Atlanta, Georgia.
November 29 » American Civil War: Battle of Spring Hill: The Confederate Army of Tennessee misses an opportunity to crush the Army of the Ohio.
December 10 » American Civil War: Sherman's March to the Sea: Major General William Tecumseh Sherman's Union Army troops reach the outer Confederate defenses of Savannah, Georgia.
Day of death February 1, 1944
The temperature on February 1, 1944 was between 5.3 °C and 7.1 °C and averaged 5.8 °C. There was 0.4 mm of rain during 1.3 hours. There was 2.2 hours of sunshine (24%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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 29 » In Bologna, Italy, the Anatomical theatre of the Archiginnasio is completely destroyed in an air-raid, during the Second World War.
January 29 » World War II: Approximately 38 people are killed and about a dozen injured when the Polish village of Koniuchy (present-day Kaniūkai, Lithuania) is attacked by Soviet partisan units.
August 20 » World War II: The Battle of Romania begins with a major Soviet Union offensive.
August 21 » Dumbarton Oaks Conference, prelude to the United Nations, begins.
October 6 » World War II: Units of the 1st Czechoslovak Army Corps enter Czechoslovakia during the Battle of the Dukla Pass.
October 7 » World War II: During an uprising at Birkenau concentration camp, Jewish prisoners burn down Crematorium IV.
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/I95897.php : accessed February 21, 2026), "Koenraad de Groot (1864-1944)".
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