The temperature on August 25, 1861 was about 13.8 °C. There was 4 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 90%. 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.
March 17 » The Kingdom of Italy is proclaimed.
May 13 » American Civil War: Queen Victoria of the United Kingdom issues a "proclamation of neutrality" which recognizes the Confederacy as having belligerent rights.
July 25 » American Civil War: The United States Congress passes the Crittenden–Johnson Resolution, stating that the war is being fought to preserve the Union and not to end slavery.
August 10 » American Civil War: Battle of Wilson's Creek: A mixed force of Confederate, Missouri State Guard, and Arkansas State troops defeat outnumbered attacking Union forces in the southwestern part of the state.
November 20 » American Civil War: A secession ordinance is filed by Kentucky's Confederate government.
Day of marriage January 15, 1887
The temperature on January 15, 1887 was about -4.5 °C. The air pressure was 1 kgf/m2 and came mainly from the east-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 88%. 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 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
October 1 » Balochistan is conquered by the British Empire.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
Day of death December 4, 1935
The temperature on December 4, 1935 was between 0.7 °C and 5.8 °C and averaged 3.4 °C. There was 15.2 mm of rain during 7.9 hours. There was 0.4 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 14 » The Black Sunday dust storm, considered one of the worst storms of the Dust Bowl, swept across the Oklahoma and Texas panhandles and neighboring areas.
May 24 » The first night game in Major League Baseball history is played in Cincinnati, Ohio, with the Cincinnati Reds beating the Philadelphia Phillies 2–1 at Crosley Field.
May 25 » Jesse Owens of Ohio State University breaks three world records and ties a fourth at the Big Ten Conference Track and Field Championships in Ann Arbor, Michigan.
August 31 » In an attempt to stay out of the growing tensions concerning Germany and Japan, the United States passes the first of its Neutrality Acts.
September 15 » The Nuremberg Laws deprive German Jews of citizenship.
December 9 » Walter Liggett, American newspaper editor and muckraker, is killed in a gangland murder.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I41.php : accessed January 3, 2026), "Petrus de Laak (1861-1935)".
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