April 7 » Completion of the first Lake Biwa Canal.
July 1 » Canada and Bermuda are linked by telegraph cable.
August 7 » Anna Månsdotter became the last woman to be executed in Sweden for the 1889 Yngsjö murder.
September 12 » Salisbury, Rhodesia, is founded.
October 11 » In Washington, D.C., the Daughters of the American Revolution is founded.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of marriage May 9, 1930
The temperature on May 9, 1930 was between -0.7 °C and 12.4 °C and averaged 6.9 °C. There was 0.7 mm of rain during 0.3 hours. There was 6.3 hours of sunshine (41%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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.
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 27 » The 1,046 feet (319m) Chrysler Building in New York City, the tallest man-made structure at the time, opens to the public.
August 7 » The last confirmed lynching of blacks in the Northern United States occurs in Marion, Indiana; two men, Thomas Shipp and Abram Smith, are killed.
October 3 » The German Socialist Labour Party in Poland – Left is founded.
October 27 » Ratifications exchanged in London for the first London Naval Treaty go into effect immediately, further limiting the expensive naval arms race among its five signatories.
November 3 » Getúlio Vargas becomes Head of the Provisional Government in Brazil after a bloodless coup on October 24.
Day of death January 25, 1932
The temperature on January 25, 1932 was between -3.6 °C and 3.4 °C and averaged 0.6 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. 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.
When copying data from this family tree, please include a reference to the origin: Jan Palmen, "Family tree Palmen", database, Genealogy Online (https://www.genealogieonline.nl/palmen-stamboom/I346.php : accessed March 1, 2026), "Wilhelmina Adriana "Mijntje" de Groot (1890-1932)".
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