The temperature on April 6, 1861 was about 9.1 °C. There was 0.1 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 66%. 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 26 » American Civil War: The state of Louisiana secedes from the Union.
April 6 » First performance of Arthur Sullivan's debut success, his suite of incidental music for The Tempest, leading to a career that included the famous Gilbert and Sullivan operas.
August 6 » Britain imposes the Lagos Treaty of Cession to suppress slavery in what is now Nigeria.
September 17 » Argentine Civil Wars: The State of Buenos Aires defeats the Argentine Confederation at the Battle of Pavón.
October 21 » American Civil War: Union forces under Colonel Edward Baker are defeated by Confederate troops in the second major battle of the war.
December 21 » Medal of Honor: Public Resolution 82, containing a provision for a Navy Medal of Valor, is signed into law by President Abraham Lincoln.
Day of marriage May 23, 1889
The temperature on May 23, 1889 was about 26.2 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 35%. Source: KNMI
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
March 31 » The Eiffel Tower is officially opened.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
July 11 » Tijuana, Mexico, is founded.
November 8 » Montana is admitted as the 41st U.S. state.
Day of death July 2, 1942
The temperature on July 2, 1942 was between 8.2 °C and 23.6 °C and averaged 17.1 °C. There was 13.1 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
February 24 » The Battle of Los Angeles: A false alarm led to an anti-aircraft barrage that lasted into the early hours of February 25.
March 12 » The Battle of Java ends with the surrender of the American-British-Dutch-Australian Command to the Japanese Empire in Bandung, West Java, Dutch East Indies.
July 28 » World War II: Soviet leader Joseph Stalin issues Order No. 227. In response to alarming German advances, all those who retreat or otherwise leave their positions without orders to do so are to be tried in a military court, with punishment ranging from duty in a shtrafbat battalion, imprisonment in a Gulag, or execution.
September 21 » The Holocaust in Ukraine: On the Jewish holiday of Yom Kippur, Nazis send over 1,000 Jews of Pidhaitsi to Bełżec extermination camp.
October 2 » World War II: Ocean Liner RMSQueen Mary accidentally rams and sinks HMSCuracoa, killing 337 crewmen aboard Curacoa.
December 7 » World War II: British commandos conduct Operation Frankton, a raid on shipping in Bordeaux harbour.
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/I149222.php : accessed October 12, 2026), "Roelf IJbema (1861-1942)".
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