May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
May 26 » Thousand Days' War: The Colombian Conservative Party turns the tide of war in their favor with victory against the Colombian Liberal Party in the Battle of Palonegro.
June 17 » Boxer Rebellion: Western Allied and Japanese forces capture the Taku Forts in Tianjin, China.
June 21 » Boxer Rebellion. China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
December 19 » Hopetoun Blunder: The first Governor-General of Australia John Hope, 7th Earl of Hopetoun, appoints Sir William Lyne premier of the new state of New South Wales, but he is unable to persuade other colonial politicians to join his government and is forced to resign.
Day of marriage February 28, 1928
The temperature on February 28, 1928 was between 0.7 °C and 12.5 °C and averaged 5.2 °C. There was 8.8 hours of sunshine (82%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
March 21 » Charles Lindbergh is presented with the Medal of Honor for the first solo trans-Atlantic flight.
June 8 » Second Northern Expedition: The National Revolutionary Army captures Peking, whose name is changed to Beijing ("Northern Capital").
September 28 » Alexander Fleming notices a bacteria-killing mold growing in his laboratory, discovering what later became known as penicillin.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
December 13 » George Gershwin's An American in Paris is first performed.
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/I101503.php : accessed October 3, 2026), "Klaas de Boer (1900-)".
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