The temperature on July 10, 1890 was about 17.3 °C. The air pressure was 4 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 62%. Source: KNMI
April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
September 12 » Salisbury, Rhodesia, is founded.
October 11 » In Washington, D.C., the Daughters of the American Revolution is founded.
November 4 » City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 29 » Wounded Knee Massacre on Pine Ridge Indian Reservation, 300 Lakota are killed by the United States 7th Cavalry Regiment.
Day of marriage May 16, 1914
The temperature on May 16, 1914 was between 4.8 °C and 19.1 °C and averaged 13.5 °C. There was 13.7 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
April 9 » Mexican Revolution: One of the world's first naval/air skirmishes takes place off the coast of western Mexico.
July 29 » The Cape Cod Canal opened.
August 15 » World War I: The First Russian Army, led by Paul von Rennenkampf, enters East Prussia.
August 23 » World War I: Japan declares war on Germany.
August 28 » World War I: The Royal Navy defeats the German fleet in the Battle of Heligoland Bight.
October 27 » First World War: The new British battleship HMS Audacious is sunk by a minefield laid by the armed German merchant-cruiser Berlin.
Day of death February 20, 1966
The temperature on February 20, 1966 was between 3.5 °C and 9.3 °C and averaged 7.0 °C. There was 1.7 mm of rain during 2.9 hours. The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 10 » Tashkent Declaration, a peace agreement between India and Pakistan signed that resolved the Indo-Pakistani War of 1965.
May 25 » Explorer program: Explorer 32 launches.
September 8 » The landmark American science fiction television series Star Trek premieres with its first-aired episode, "The Man Trap".
September 30 » Bechuanaland declares its independence, and becomes the Republic of Botswana.
November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).
November 15 » Project Gemini: Gemini 12 completes the program's final mission, when it splashes down safely in the Atlantic Ocean.
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/I14358.php : accessed October 15, 2026), "Trijntje Merkus (1890-1966)".
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