The temperature on November 10, 1889 was about 9.1 °C. The air pressure was 2 kgf/m2 and came mainly from the northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 100%. Source: KNMI
February 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
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 29 » Hyde Park and several other Illinois townships vote to be annexed by Chicago, forming the largest United States city in area and second largest in population at the time.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
Day of death October 4, 1962
The temperature on October 4, 1962 was between 6.8 °C and 15.5 °C and averaged 13.2 °C. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
February 10 » Cold War: Captured American U2 spy-plane pilot Gary Powers is exchanged for captured Soviet spy Rudolf Abel.
July 23 » Telstar relays the first publicly transmitted, live trans-Atlantic television program, featuring Walter Cronkite.
July 30 » The Trans-Canada Highway, the longest national highway in the world, is officially opened.
November 24 » Cold War: The West Berlin branch of the Socialist Unity Party of Germany forms a separate party, the Socialist Unity Party of West Berlin.
December 9 » The Petrified Forest National Park is established in Arizona.
December 14 » NASA's Mariner 2 becomes the first spacecraft to fly by Venus.
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/I76610.php : accessed December 29, 2025), "Heinze de Boer (1889-1962)".
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