April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 20 » Pierre and Marie Curie refine radium chloride.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
Day of marriage May 7, 1930
The temperature on May 7, 1930 was between 1.7 °C and 13.8 °C and averaged 7.4 °C. There was 0.2 mm of rain during 0.3 hours. There was 2.5 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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.
March 6 » International Unemployment Day demonstrations globally initiated by the Comintern.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
April 2 » After the mysterious death of Empress Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
October 3 » The German Socialist Labour Party in Poland – Left is founded.
December 2 » Great Depression: In a State of the Union message, U.S. President Herbert Hoover proposes a $150 million (equivalent to $2,296,000,000 in 2019) public works program to help generate jobs and stimulate the economy.
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: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I396486.php : accessed January 23, 2026), "Arnoldus Hendricus Sleddens (1902-)".
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