The temperature on July 1, 1890 was about 13.9 °C. There was 2 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the south-southwest. The airpressure was 74 cm mercury. The atmospheric humidity was 81%. Source: KNMI
April 7 » Completion of the first Lake Biwa Canal.
April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
June 1 » The United States Census Bureau begins using Herman Hollerith's tabulating machine to count census returns.
July 3 » Idaho is admitted as the 43rd U.S. state.
July 10 » Wyoming is admitted as the 44th U.S. state.
September 24 » The Church of Jesus Christ of Latter-day Saints officially renounces polygamy.
Day of marriage December 2, 1937
The temperature on December 2, 1937 was between 5.0 °C and 10.4 °C and averaged 7.8 °C. There was 3.6 mm of rain during 1.7 hours. There was 0.7 hours of sunshine (9%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
May 7 » Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces.
May 21 » A Soviet station, North Pole-1, becomes the first scientific research settlement to operate on the drift ice of the Arctic Ocean.
June 30 » The world's first emergency telephone number, 999, is introduced in London.
July 8 » Turkey, Iran, Iraq and Afghanistan sign the Treaty of Saadabad.
July 26 » Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.
October 11 » The Duke and Duchess of Windsor tour Nazi Germany for 12 days and meet Adolf Hitler on the 22nd.
Day of death June 1, 1958
The temperature on June 1, 1958 was between 11.0 °C and 25.4 °C and averaged 19.5 °C. There was 13.0 hours of sunshine (79%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Roelf Schrik, "Family tree Keizer", database, Genealogy Online (https://www.genealogieonline.nl/keizer-stamboom/I74.php : accessed January 25, 2026), "Marianne Keizer (1890-1958)".
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