The temperature on August 12, 1889 was about 15.1 °C. There was 4 mm of rain. The air pressure was 16 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 90%. Source: KNMI
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
June 3 » The first long-distance electric power transmission line in the United States is completed, running 14 miles (23km) between a generator at Willamette Falls and downtown Portland, Oregon.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
Day of marriage October 4, 1923
The temperature on October 4, 1923 was between 5.0 °C and 12.9 °C and averaged 9.8 °C. There was 9.1 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 10 » Texas Tech University is founded as Texas Technological College in Lubbock, Texas
April 28 » Wembley Stadium is opened, named initially as the Empire Stadium.
July 1 » The Parliament of Canada suspends all Chinese immigration.
September 7 » The International Criminal Police Organization (INTERPOL) is formed.
September 8 » Honda Point disaster: Nine US Navy destroyers run aground off the California coast. Seven are lost, and twenty-three sailors killed.
September 29 » The British Mandate for Palestine takes effect, creating Mandatory Palestine.
Day of death October 6, 1966
The temperature on October 6, 1966 was between 10.0 °C and 18.3 °C and averaged 13.6 °C. There was 0.1 mm of rain during 0.6 hours. There was 0.8 hours of sunshine (7%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 12 » Lyndon B. Johnson states that the United States should stay in South Vietnam until Communist aggression there is ended.
February 28 » A NASA T-38 Talon crashes into the McDonnell Aircraft factory while attempting a poor-visibility landing at Lambert Field, St. Louis, killing astronauts Elliot See and Charles Bassett.
March 10 » Military Prime Minister of South Vietnam Nguyễn Cao Kỳ sacked rival General Nguyễn Chánh Thi, precipitating large-scale civil and military dissension in parts of the nation.
May 16 » The Communist Party of China issues the "May 16 Notice", marking the beginning of the Cultural Revolution.
September 12 » Gemini 11, the penultimate mission of NASA's Gemini program, and the current human altitude record holder (except for the Apollo lunar missions).
October 22 » The Supremes become the first all-female music group to attain a No. 1 selling album (The Supremes A' Go-Go).
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The Family tree Dovermann publication was prepared by Chir Dovermann (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Chir Dovermann, "Family tree Dovermann", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dovermann/I19.php : accessed January 1, 2026), "Maria Ida Sijstermans (1889-1966)".
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