March 7 » Second Boer War: Boers, led by Koos de la Rey, inflict the biggest defeat upon the British since the beginning of the war, at Tweebosch.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 20 » Pierre and Marie Curie refine radium chloride.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of marriage May 10, 1928
The temperature on May 10, 1928 was between -1.0 °C and 11.6 °C and averaged 4.8 °C. There was 0.8 mm of rain. There was 10.1 hours of sunshine (66%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
March 12 » In California, the St. Francis Dam fails; the resulting floods kill 431 people.
April 12 » The Bremen, a German Junkers W 33 type aircraft, takes off for the first successful transatlantic aeroplane flight from east to west.
September 27 » The Republic of China is recognized by the United States.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
October 22 » Phi Sigma Alpha fraternity is founded at the University of Puerto Rico.
December 17 » Indian revolutionaries Bhagat Singh, Sukhdev Thapar and Shivaram Rajguru assassinate British police officer James Saunders in Lahore, Punjab, to avenge the death of Lala Lajpat Rai at the hands of the police. The three were executed in 1931.
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/I136597.php : accessed October 8, 2026), "Klaas Knoop (1902-)".
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