The temperature on March 31, 1912 was between 4.3 °C and 9.4 °C and averaged 6.6 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
April 17 » Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
May 5 » Pravda, the "voice" of the Communist Party of the Soviet Union, begins publication in Saint Petersburg.
July 30 » Japan's Emperor Meiji dies and is succeeded by his son Yoshihito, who is now known as the Emperor Taishō.
September 2 » Arthur Rose Eldred is awarded the first Eagle Scout award of the Boy Scouts of America.
December 6 » The Nefertiti Bust is discovered.
Day of marriage May 18, 1938
The temperature on May 18, 1938 was between 7.2 °C and 11.4 °C and averaged 9.4 °C. There was 3.4 mm of rain during 6.5 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
May 25 » Spanish Civil War: The bombing of Alicante kills 313 people.
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.
June 11 » Second Sino-Japanese War: The Battle of Wuhan starts.
July 28 » Hawaii Clipper disappears between Guam and Manila as the first loss of an airliner in trans-Pacific China Clipper service.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
Day of death June 19, 1995
The temperature on June 19, 1995 was between 9.7 °C and 22.1 °C and averaged 16.7 °C. There was 12.8 hours of sunshine (76%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
March 2 » Researchers at Fermilab announce the discovery of the top quark.
May 23 » The first version of the Java programming language is released.
July 11 » Yugoslav Wars: Srebrenica massacre begins; lasts until 22 July.
August 30 » Bosnian War: NATO launches Operation Deliberate Force against Bosnian Serb forces.
September 22 » The Nagerkovil school bombing is carried out by the Sri Lanka Air Force in which at least 34 die, most of them ethnic Tamil schoolchildren.
December 5 » Sri Lankan Civil War: Sri Lanka's government announces the conquest of the Tamil stronghold of Jaffna.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I23902.php : accessed March 6, 2026), "Willem Potze (1912-1995)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.