The temperature on July 23, 1887 was about 21.1 °C. The air pressure was 23 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 46%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
November 13 » Bloody Sunday clashes in central London.
Day of death July 23, 1964
The temperature on July 23, 1964 was between 12.1 °C and 18.9 °C and averaged 15.4 °C. There was 0.1 mm of rain during 0.2 hours. There was 4.1 hours of sunshine (26%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 1 » The Federation of Rhodesia and Nyasaland is divided into the independent republics of Zambia and Malawi, and the British-controlled Rhodesia.
January 28 » An unarmed United States Air Force T-39 Sabreliner on a training mission is shot down over Erfurt, East Germany, by a Soviet MiG-19.
June 10 » United States Senate breaks a 75-day filibuster against the Civil Rights Act of 1964, leading to the bill's passage.
October 29 » The United Republic of Tanganyika and Zanzibar is renamed the United Republic of Tanzania.
December 4 » Free Speech Movement: Police arrest over 800 students at the University of California, Berkeley, following their takeover and sit-in at the administration building in protest of the UC Regents' decision to forbid protests on UC property.
December 5 » Lloyd J. Old discovered the first linkage between the major histocompatibility complex (MHC) and disease—mouse leukemia—opening the way for the recognition of the importance of the MHC in the immune response.
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/I182535.php : accessed December 30, 2025), "Johanna de Sevinga (1887-1964)".
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