The temperature on September 21, 1870 was about 18.5 °C. The air pressure was 4 kgf/m2 and came mainly from the northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 75%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 3 » Construction work begins on the Brooklyn Bridge in New York, United States.
February 15 » Stevens Institute of Technology is founded in New Jersey, USA and offers the first Bachelor of Engineering degree in Mechanical Engineering.
February 23 » Reconstruction Era: Post-U.S. Civil War military control of Mississippi ends and it is readmitted to the Union.
August 8 » The Republic of Ploiești, a failed Radical-Liberal rising against Domnitor Carol of Romania.
August 24 » The Wolseley expedition reaches Manitoba to end the Red River Rebellion.
September 3 » Franco-Prussian War: The Siege of Metz begins, resulting in a decisive Prussian victory on October 23.
Day of death February 13, 1950
The temperature on February 13, 1950 was between 2.7 °C and 9.2 °C and averaged 6.0 °C. There was 28.1 mm of rain during 10.8 hours. There was 1.4 hours of sunshine (14%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
June 28 » Korean War: Packed with its own refugees fleeing Seoul and leaving their 5th Division stranded, South Korean forces blow up the Hangang Bridge in an attempt to slow North Korea's offensive. The city falls later that day.
July 5 » Korean War: Task Force Smith: American and North Korean forces first clash, in the Battle of Osan.
October 19 » China defeats the Tibetan Army at Chambo.
October 21 » Korean War: Heavy fighting begins between British and Australian forces against the North Koreans during the Battle of Yongju.
November 17 » United Nations Security Council Resolution 89 relating to the Palestine Question is adopted.
December 17 » The F-86 Sabre's first mission over Korea.
When copying data from this family tree, please include a reference to the origin: Gert Pieters, "Family tree Koops", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koops/I918.php : accessed February 21, 2026), "Roelof Thalen (1870-1950)".
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