The temperature on December 6, 1869 was about 0.3 °C. The air pressure was 4 kgf/m2 and came mainly from the east-northeast. The airpressure was 78 cm mercury. The atmospheric humidity was 94%. 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).
March 6 » Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society.
April 28 » Chinese and Irish laborers for the Central Pacific Railroad working on the First Transcontinental Railroad lay ten miles of track in one day, a feat which has never been matched.
May 26 » Boston University is chartered by the Commonwealth of Massachusetts.
August 16 » Battle of Acosta Ñu: A Paraguayan battalion made up of children is massacred by the Brazilian Army during the Paraguayan War.
August 29 » The Mount Washington Cog Railway opens, making it the world's first mountain-climbing rack railway.
October 5 » The Saxby Gale devastates the Bay of Fundy region in Canada.
Day of marriage May 8, 1897
The temperature on May 8, 1897 was about 12.9 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 78%. Source: KNMI
January 31 » Czechoslav Trade Union Association is founded in Prague.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
Day of death April 19, 1952
The temperature on April 19, 1952 was between 6.4 °C and 20.8 °C and averaged 13.3 °C. There was 11.8 hours of sunshine (84%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
July 19 » Opening of the Summer Olympics in Helsinki, Finland.
September 8 » The Canadian Broadcasting Corporation makes its first televised broadcast on the second escape of the Boyd Gang.
September 19 » The United States bars Charlie Chaplin from re-entering the country after a trip to England.
October 14 » Korean War: The Battle of Triangle Hill is the biggest and bloodiest battle of 1952.
November 29 » Korean War: U.S. President-elect Dwight D. Eisenhower fulfills a campaign promise by traveling to Korea to find out what can be done to end the conflict.
December 20 » A United States Air Force C-124 crashes and burns in Moses Lake, Washington killing 87.
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/I155856.php : accessed March 1, 2026), "Mentha Carolina Douma (1869-1952)".
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