The temperature on April 28, 1938 was between 3.8 °C and 16.0 °C and averaged 9.9 °C. There was 11.9 hours of sunshine (81%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
March 27 » Second Sino-Japanese War: The Battle of Taierzhuang begins, resulting several weeks later in the war's first major Chinese victory over Japan.
June 7 » Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces. Five hundred to nine hundred thousand civilians are killed.
July 31 » Archaeologists discover engraved gold and silver plates from King Darius the Great in Persepolis.
September 27 » The ocean liner Queen Elizabeth is launched in Glasgow.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
December 13 » The Holocaust: The Neuengamme concentration camp opens in the Bergedorf district of Hamburg, Germany.
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/I82336.php : accessed October 18, 2026), "Klaas Mulder (± 1919-)".
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