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).
February 10 » Jefferson Davis is notified by telegraph that he has been chosen as provisional President of the Confederate States of America.
February 11 » American Civil War: The United States House of Representatives unanimously passes a resolution guaranteeing noninterference with slavery in any state.
February 23 » President-elect Abraham Lincoln arrives secretly in Washington, D.C., after the thwarting of an alleged assassination plot in Baltimore, Maryland.
October 9 » American Civil War: Union troops repel a Confederate attempt to capture Fort Pickens.
November 1 » American Civil War: U.S. President Abraham Lincoln appoints George B. McClellan as the commander of the Union Army, replacing General Winfield Scott.
November 7 » The first Melbourne Cup horse race is held in Melbourne, Australia.
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 22 » Columbia Phonograph is formed in Washington, D.C.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
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.
May 8 » World War II: Gunners of the Ceylon Garrison Artillery on Horsburgh Island in the Cocos Islands rebel in the Cocos Islands Mutiny. Their mutiny is crushed and three of them are executed, the only British Commonwealth soldiers to be executed for mutiny during the Second World War.
July 23 » World War II: The German offensives Operation Edelweiss and Operation Braunschweig begin.
August 9 » World War II: Battle of Savo Island: Allied naval forces protecting their amphibious forces during the initial stages of the Battle of Guadalcanal are surprised and defeated by an Imperial Japanese Navy cruiser force.
August 11 » Actress Hedy Lamarr and composer George Antheil receive a patent for a Frequency-hopping spread spectrum communication system that later became the basis for modern technologies in wireless telephones and Wi-Fi.
August 16 » World War II: A naval L-class blimp drifts in from the Pacific and eventually crashes in Daly City, California. The two-man crew cannot be found.
October 29 » The Holocaust: In the United Kingdom, leading clergymen and political figures hold a public meeting to register outrage over Nazi Germany's persecution of Jews.
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 15, 2026), "Roelf IJbema (1861-1942)".
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