The temperature on August 27, 1861 was about 21.4 °C. The air pressure was 2 kgf/m2 and came mainly from the northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 77%. 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 10 » American Civil War: Florida becomes the third state to secede from the Union.
January 21 » American Civil War: Jefferson Davis resigns from the United States Senate.
February 18 » With Italian unification almost complete, Victor Emmanuel II of Piedmont, Savoy and Sardinia assumes the title of King of Italy.
April 12 » American Civil War: Battle of Fort Sumter. The war begins with Confederate forces firing on Fort Sumter, in the harbor of Charleston, South Carolina.
May 20 » American Civil War: The state of Kentucky proclaims its neutrality, which will last until September 3 when Confederate forces enter the state. Meanwhile, the State of North Carolina secedes from the Union.
November 8 » American Civil War: The "Trent Affair": The USSSan Jacinto stops the British mail ship Trent and arrests two Confederate envoys, sparking a diplomatic crisis between the UK and US.
Day of marriage January 6, 1888
The temperature on January 6, 1888 was about 2.5 °C. There was 0.5 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the south-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 100%. 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.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
January 13 » The National Geographic Society is founded in Washington, D.C.
August 14 » An audio recording of English composer Arthur Sullivan's "The Lost Chord", one of the first recordings of music ever made, is played during a press conference introducing Thomas Edison's phonograph in London, England.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
August 31 » Mary Ann Nichols is murdered. She is the first of Jack the Ripper's confirmed victims.
October 15 » The "From Hell" letter allegedly sent by Jack the Ripper is received by investigators.
October 17 » Thomas Edison files a patent for the Optical Phonograph (the first movie).
Day of death December 6, 1944
The temperature on December 6, 1944 was between 0.8 °C and 6.2 °C and averaged 3.4 °C. There was 1.9 mm of rain during 1.7 hours. There was 2.5 hours of sunshine (31%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-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.
July 9 » World War II: American forces take Saipan, bringing the Japanese archipelago within range of B-29 raids, and causing the downfall of the Tojo government.
July 26 » World War II: The Red Army enters Lviv, a major city in western Ukraine, capturing it from the Nazis. Only 300 Jews survive out of 160,000 living in Lviv prior to occupation.
August 10 » World War II: The Battle of Narva ends with a combined German–Estonian force successfully defending Narva, Estonia, from invading Soviet troops.
September 6 » World War II: Soviet forces capture the city of Tartu, Estonia.
October 8 » World War II: Captain Bobbie Brown earns a Medal of Honor for his actions during the Battle of Crucifix Hill, just outside Aachen.
October 21 » World War II: The city of Aachen falls to American forces after three weeks of fighting, making it the first German city to fall to the Allies.
When copying data from this family tree, please include a reference to the origin: Peter Keesman, "Family tree Keesman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-keesman/I8069.php : accessed February 9, 2026), "Jan Leen (1861-1944)".
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