The temperature on August 17, 1890 was about 19.9 °C. The air pressure was 1 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 78%. Source: KNMI
January 22 » The United Mine Workers of America is founded in Columbus, Ohio.
April 7 » Completion of the first Lake Biwa Canal.
July 10 » Wyoming is admitted as the 44th U.S. state.
September 25 » The United States Congress establishes Sequoia National Park.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 15 » Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre.
Day of death April 20, 1930
The temperature on April 20, 1930 was between 3.8 °C and 9.0 °C and averaged 5.6 °C. There was 0.4 hours of sunshine (3%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 30 » The Politburo of the Soviet Union orders the extermination of the Kulaks.
February 18 » While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
May 1 » "Pluto" is officially proposed for the name of the newly-discovered dwarf planet Pluto by Vesto Slipher in the Lowell Observatory Observation Circular. The name quickly catches on.
May 24 » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
December 7 » W1XAV in Boston, Massachusetts telecasts video from the CBS radio orchestra program, The Fox Trappers. The telecast also includes the first television commercial in the United States, an advertisement for I.J. Fox Furriers, who sponsored the radio show.
When copying data from this family tree, please include a reference to the origin: Gert Esterhuizen, "Family tree Eric Esterhuizen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-esterhuizen/I15646.php : accessed February 25, 2026), "Maria Catharina KOEKEMOER (1890-1930)".
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