The temperature on January 19, 1873 was about 8.1 °C. There was 3 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the southwest. The airpressure was 73 cm mercury. The atmospheric humidity was 86%. Source: KNMI
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
March 1 » E. Remington and Sons in Ilion, New York begins production of the first practical typewriter.
May 9 » Der Krach: Vienna stock market crash heralds the Long Depression.
May 20 » Levi Strauss and Jacob Davis receive a U.S. patent for blue jeans with copper rivets.
July 1 » Prince Edward Island joins into Canadian Confederation.
August 4 » American Indian Wars: While protecting a railroad survey party in Montana, the United States 7th Cavalry, under Lieutenant Colonel George Armstrong Custer clashes for the first time with the Cheyenne and Lakota people near the Tongue River; only one man on each side is killed.
October 9 » A meeting at the U.S. Naval Academy establishes the U.S. Naval Institute.
Day of marriage October 13, 1900
The temperature on October 13, 1900 was about 11.5 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 80%. Source: KNMI
January 16 » The United States Senate accepts the Anglo-German treaty of 1899 in which the United Kingdom renounces its claims to the Samoan islands.
March 14 » The Gold Standard Act is ratified, placing the United States currency on the gold standard.
April 15 » Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
June 5 » Second Boer War: British soldiers take Pretoria.
June 18 » Empress Dowager Cixi of China orders all foreigners killed, including foreign diplomats and their families.
Day of death April 15, 1961
The temperature on April 15, 1961 was between 3.9 °C and 16.9 °C and averaged 11.5 °C. There was 5.4 hours of sunshine (39%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 3 » The SL-1 nuclear reactor is destroyed by a steam explosion in the only reactor incident in the United States to cause immediate fatalities.
January 23 » The Portuguese luxury cruise ship Santa Maria is hijacked by opponents of the Estado Novo regime with the intention of waging war until dictator António de Oliveira Salazar is overthrown.
May 19 » At Silchar Railway Station, Assam, 11 Bengalis die when police open fire on protesters demanding state recognition of Bengali language in the Bengali Language Movement.
May 31 » The South African Constitution of 1961 becomes effective, thus creating the Republic of South Africa, which remains outside the Commonwealth of Nations until 1 June 1994, when South Africa is returned to Commonwealth membership.
September 16 » The United States National Hurricane Research Project drops eight cylinders of silver iodide into the eyewall of Hurricane Esther. Wind speed reduces by 10%, giving rise to Project Stormfury.
November 29 » Project Mercury: Mercury-Atlas 5 Mission: Enos, a chimpanzee, is launched into space. The spacecraft orbits the Earth twice and splashes down off the coast of Puerto Rico.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I61533.php : accessed February 18, 2026), "Helena Wagter (1873-1961)".
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